The night was heavy when Jay finally returned to Earth. The air was cooler than he remembered, carrying the familiar scent of the neighborhood he had long since grown accustomed to. Time dilation had done its work: what had felt like endless hours traveling across the galaxy, ferrying corpses and leaving chaos in his wake, had cost him more of this world's night than he had intended.
By the time his feet touched the quiet pavement before Mamako's home, the sky was painted black, the stars dull and unremarkable compared to the cosmic wilderness he had traversed earlier. Lights still glowed faintly behind the curtains, proof that the house was not yet asleep.
Jay exhaled, the weight of the day catching up with him. He had carved his name into the fear of the galaxy, leaving worlds unsettled and families mourning. Yet here, this quiet little home stood like an island— fragile, ordinary, and stubbornly human. He could almost pretend the two realities weren't colliding.
Almost.
He stepped inside. The living room was lit, warm, too warm. And the warmth was immediately broken by the voice he had expected but still dreaded.
"You finally came back."
Masato's voice was sharp, serrated with anger, carrying none of the affection a son might show his brother. He was sitting upright on the couch, his face pale but burning with the energy of resentment. His fists clenched at his knees, trembling, his teeth bared.
Mamako rose from her seat at the dining table, relief flooding her expression when she saw Jay. "Jay, you're home—"
But her words were cut off by Masato's sudden roar.
"Don't you dare act like this is normal!"
His eyes, wide and feverish, darted between Jay and the others gathered there.
"Ever since you came, everything's gone to hell. Everyone—everyone in this damn house—keeps siding with you! Even you, Mother!"
Rito stiffened near the hallway, his face pale, caught in the tension. Mikan stood beside him, protective, her small hands curled tightly at her sides.
Lala, who had been quietly perched near Mamako, froze when Masato's glare fixed on her.
"And you!" Masato spat, finger jabbing toward her.
"You—alien princess, acting so perfect, like you belong here. You don't. You've ruined everything. You dragged him into this, didn't you?!"
Lala's lips parted. Her eyes trembled as she tried to answer, but the words wouldn't form. Her chest rose and fell, and Jay saw the faint glassiness in her eyes— the warning of tears she was fighting to keep back.
Masato wasn't done. His anger turned like a storm, whipping to each person.
"And you, Rito—pathetic coward who just goes along with whatever he says. And Mikan, pretending you're so grown up, always defending him. You're not even family. None of you are. Not to me. And you, Mother—"
His voice cracked here, but he pushed through, louder. "You're supposed to be mine. My mother. But all you ever do is smile at him. Care for him. Defend him. What about me?! Do you even see me anymore? Or am I just the spare now?!"
The room hung silent, his words echoing like shards of glass. Lala's hands shook in her lap, her face bowed, fighting the sting of his accusations. Mamako's eyes watered, torn between love and helplessness.
And then Jay moved.
"Enough."
The word wasn't loud. It didn't need to be. It landed like a blade into the floor, sharp, final. The anger in Masato's chest seemed to falter at the sudden force behind that single syllable.
Jay stepped forward, his gaze locked on Masato, not cruel, not pitying, but burning with a steady, controlled heat.
"You want to hate me? Fine. I don't care. Hate me all you like," Jay said, his voice even but edged.
"You're not wrong—I'm not your real brother. I'm just someone who happened to end up here. That much is true. But don't you dare turn that hatred onto them."
He pointed toward Mamako first. "Mama has loved you every single day of your life. She has never compared us. She never once set me above you. If you can't see that, it's because jealousy has blinded you. And that's on you, not her."
Mamako's hand fluttered to her lips, tears threatening, but she stayed quiet.
Jay's eyes shifted to Lala, whose breath was shaky, caught between hurt and confusion. His voice hardened.
"And as for her—watch your mouth. She's my fiancée. Whether you like it or not, I chose her, and I care for her. If you have a problem with me, then face me. But if you insult her again, if you even say another word that makes her cry—then you and I will have a different kind of problem."
Masato's jaw clenched, his body rigid under the weight of Jay's words. But the rage in his eyes didn't subside—it burned hotter, almost manic.
"You think you can stand there and tell me what to do?" Masato hissed. His voice cracked under the strain. "All of you—you're all blind. He's not a savior. He's a monster. He doesn't belong here…. He doesn't belong here!!!!"
His breath came ragged, chest heaving. And then, with a suddenness that shocked even him, he shouted:
"Get out. All of you. Out of my house!"
The room went still.
Mamako gasped, her face pale, her lips parting but no sound escaping. Rito stiffened, uncertain, Mikan's hand tightening around his arm. Lala looked as though the floor had been ripped from under her.
Masato's voice rose again, sharp, breaking.
"Didn't you hear me?! I don't want any of you here. Not you, not him, not anyone. GET OUT!"
Jay's eyes narrowed. For a heartbeat, he considered answering with violence, with the raw truth of his power. But he didn't. He saw the trembling behind Masato's eyes—not strength, not righteousness, but fear. Fear wrapped in envy, and envy sharpened into cruelty.
So Jay didn't fight. He simply looked at Mamako, at Lala, at the others, and gave a small nod.
"Fine," he said quietly.
"If that's what you want."
The silence that followed was suffocating.
Mamako, broken-hearted, tried to reach for Masato, but her hand faltered midair. Tears slipped free as she looked away. Lala wiped quickly at her eyes, trying to hold herself together. Rito opened his mouth to argue, but Mikan tugged at his sleeve, shaking her head.
And just like that, they began to leave. One by one, filing out of the house they had once called home, stepping into the cold night air.
Jay was the last to step out, his eyes never leaving Masato's until the door closed between them.
Outside, the street was quiet, the stars dim. Mamako's shoulders shook, Lala's head bowed low. Rito and Mikan looked lost, unsure what to say.
Jay exhaled, his voice steady, though the edges of his temper still lingered.
And without another word, he led them into the dark, away from the house that no longer welcomed them.
Yuuki's family house was quiet when they arrived.
The walk there had been silent, heavy, each of them swallowed by their own thoughts.
When Mikan opened the door, the familiar scent of his home greeted them—wood polish, faint detergent, and the warmth of a lived-in space. It felt safer, softer, compared to the storm they had just fled.
Mikan then quickly moved to the kitchen, murmuring something about preparing tea, trying to anchor herself in routine.
Rito lingered awkwardly in the entryway, shifting from foot to foot.
Lala sat heavily on the couch, her hands clasped tightly in her lap, her usual boundless energy dimmed into something fragile.
Mamako trailed behind them all, her eyes red, her movements slow, as though each step weighed twice as much as it should.
Jay shut the door behind him and stood there for a long moment.
The tension that had burned inside him while confronting Masato had not disappeared—it had hardened into something heavier, something close to guilt.
"I'm sorry," he finally said. His voice was low, but it filled the room. Everyone turned to him, surprised. Jay rarely apologized.
He looked at Rito first. "Sorry for dragging you into this again Rito..."
Rito shook his head quickly. "It's not your fault. Masato was… he was out of control. Anyone could see that."
Jay gave a small nod, then turned to Mikan, who had paused halfway to the kitchen.
"You Mikan. I didn't mean for you to hear all that. You deserve better than being caught in the middle of someone else's family mess."
Mikan hesitated, her eyes soft but firm. "You defended everyone. That's more than I can say for him." She lowered her gaze.
"You don't need to apologize."
Jay exhaled. He appreciated her words, but the weight in his chest didn't lift. Finally, his gaze fell to Lala.
She sat there, her pink hair cascading over her shoulders, her bright eyes dulled, fixed on the floor. Her hands trembled slightly as she twisted her fingers together.
The memory of Masato's words hung over her like a curse.
Jay moved closer and crouched in front of her, forcing her to look at him. "Lala…," he said softly.
Her eyes lifted, shimmering with the tears she hadn't let fall earlier.
"Don't think what he said," Jay told her. His voice was calm, gentle, a stark contrast to the sharp edge he had wielded against Masato.
"None of that matters. Not to me. You're my fiancée. I accepted that because I wanted to—because I like you. If I didn't, I wouldn't have agreed, no matter how beautiful you are."
A faint smile tugged at the corner of his lips, teasing, playful, just enough to cut through the heaviness.
"Though, yeah, you're beautiful. That's kind of hard to ignore."
Lala blinked, startled by the sudden lightness in his tone, and for the first time since the confrontation, she gave a small, shaky laugh. The tension in her shoulders eased, her breath hitching as a tear finally slipped free—not of sorrow, but of release.
Jay reached out and brushed his thumb gently across her cheek, wiping it away. Then, he stroked her head.
"It's okay now," he murmured against her skin. "Don't let his words stay with you. They're not worth it."
Her eyes closed, and she nodded, a faint smile lingering on her lips. For a moment, the storm that had shaken her seemed to recede, replaced by warmth.
Jay pulled back and stood, his gaze sweeping across the room. "I'm sorry but I want to talk with Mamako alone…. can i borrow this room"
Mamako, who had been standing quietly near the doorway, surprised.
He turned to Rito, Mikan, and Lala.
"Give us some time. Just for tonight."
Lala looked reluctant, but she understood. She rose and touched his arm briefly, her smile soft but supportive. "We'll be in the other room."
Mikan returned with tea but set the tray down without protest. "We'll stay out of the way."
Rito gave a small nod, guiding the two girls out, leaving Jay and Mamako alone in the quiet of the living room.
Mamako's hands fidgeted at her sides. She looked uncertain, worried, but also strangely relieved— as if she had been waiting for this conversation, even if she didn't know what it would contain.
For a moment, neither spoke. The silence was thick, heavy with unspoken truths. Finally, Jay broke it.
"I'm sorry mama I hid the truth from you.." he said quietly. "About me."
Mamako swallowed, her eyes wide, her heart already racing.
Jay's gaze softened, though his words carried weight.
"Everything you've seen so far—what I can do, what I've survived—it's not normal. I have power. More than you can imagine. Power that doesn't belong in this world."
Mamako opened her mouth, but no words came.
He continued.
"I never told you, because I didn't want you involved. You're human. Ordinary. And that's not an insult—it's a blessing. Your life should have stayed ordinary. Because once someone steps into the world I live in, they can't go back. It's dangerous. Every day. People die. People kill. And I didn't want that for you."
Her breath hitched. Her fingers curled in her lap.
"And Masato…" Jay's tone shifted, harder now.
"I didn't want him to know because if he did, it would destroy him. He's already drowning in jealousy. If he knew the truth, if he knew the scale of what I am, he'd do anything to get power. And it would consume him. I couldn't let that happen."
Mamako's eyes glistened, the weight of his confession pressing on her chest. She tried to speak, but her throat tightened. "Why… Why tell me now?"
"Because tonight proved something," Jay said. His gaze didn't waver.
"I can't keep you at a distance anymore. You're already involved, whether I wanted it or not. You deserve to know who I am, even if it changes how you see me."
Mamako's hands shook. She clasped them together to steady herself. "Who… who are you really, Jay?"
Jay hesitated. He didn't mention the chat group, or the system, or the full truth of his origins. He only gave her what she needed to know.
"I'm someone who carries strength that shouldn't exist here. That's all I can say."
"But still i'm your son Jay Oosuki"
Mamako's lips trembled. For a long moment, she simply stared at him, torn between fear and an aching, maternal affection that refused to let go.
Finally, she whispered,
"Then… Lala. How… how did you end up engaged to her?"
For the first time since the conversation began, Jay faltered. His composure cracked slightly, and he let out a nervous laugh, rubbing the back of his neck. "That's… complicated."
Mamako tilted her head, waiting.
He sighed.
"We met under strange circumstances. She's… persistent. Bright. She pulled me into her mess before I realized it, and somehow, it turned into this. The engagement wasn't something I planned, but when the choice came, I accepted it. Because…"
He paused, his eyes softening.
"Because I like her. I don't want her forced to do something that makes her unhappy. And if marrying her means she doesn't have to suffer, then I'll do it. I'll stand by her."
Mamako's chest tightened. A strange ache bloomed in her heart—part pride, part sorrow, part something she couldn't name.
Jay leaned back, exhaling. "That's the truth. Or as much of it as I can give."
The clock on the wall ticked softly, filling the silence that followed.
Finally, Jay rose to his feet. "It's late. Mama you should rest."
Mamako looked up at him, her lips parting as if to speak. She wanted to say something—anything—but the words caught in her throat. Instead, she only nodded, her eyes shimmering.
Jay glanced toward the hallway. "Rito. Do you have a spare room for her tonight?"
Rito appeared at the edge of the doorway, nodding quickly. "Of course. We'll make it comfortable."
Jay gave a satisfied hum. "Good. Tomorrow, I'll buy a house for her. This one's too small for all of us. And I don't intend to let tonight repeat itself."
Rito blinked in surprise, but before he could answer, Jay added lightly, "Or maybe I'll just summon a flying castle. or I make a castle with gold and diamonds. That'd save time, wouldn't it?"
Mikan, who had rejoined them, stared at him in wide-eyed disbelief. "You can… you can actually do that?"
Jay smirked, his voice teasing. "If I wanted to. But where's the fun in that? Life's more interesting without a palace made of treasure."
The faintest laughter slipped through the room, easing the heaviness. For a moment, the weight lifted.
Jay turned to Lala. "Would you stay with Mamako tonight? She shouldn't be alone."
Lala nodded without hesitation. "Of course."
Mikan guided Mamako toward the spare bedroom, with Lala following close behind. Rito lingered only long enough to give Jay a grateful nod before disappearing down the hall.
And then the house fell quiet again, the storm of earlier reduced to silence.
Mamako PoV
The guest bedroom was simple, but warm. The faint lamplight painted the walls in soft gold, the sheets neatly tucked, the air carrying the faint scent of fresh laundry. Mamako sat on the edge of the bed, her hands folded in her lap. The events of the evening clung to her like heavy chains.
She could still hear Masato's voice, sharp and furious, every word dripping with venom. She could still see the look in his eyes when he cast her out—his own mother, treated like an intruder. Her heart ached with a pain she had no words for.
Beside her, Lala shifted awkwardly, hands clasped in front of her. Her usual cheer had dimmed to a faint glow, her pink hair falling around her face like a curtain. For a long moment, the silence stretched between them. Then, Lala's voice broke it, trembling.
"I'm… I'm sorry."
Mamako blinked, startled. "Eh? Why are you apologizing?"
Lala's eyes shimmered with unshed tears. She turned toward Mamako, her words spilling out in a rush.
"This is my fault, isn't it? If I hadn't gotten involved with Jay, maybe none of this would have happened..
Her voice cracked, and she pressed a hand to her chest.
"When he said those things, I thought… maybe he's right. Maybe I don't belong here. Maybe I really am just—"
(author: poor lala tbh i already want to make him dead, any suggestion to make him die without dirtying jay's hand? plss comment)
Her words cut off with a choked sound as the tears finally fell. She pressed her sleeve to her face, but it couldn't hide the trembling of her shoulders.
Mamako's heart twisted. Lala's tears were rare—so rare that seeing them now broke something deep inside her.
"Oh, sweetheart," Mamako whispered. She reached out and gathered Lala into her arms, holding her close like she would a child.
"No, no, don't say that. You don't need to apologize. None of this is your fault."
Lala clung to her, sobbing quietly, the strength she always wore stripped away. Mamako stroked her hair gently, her voice soothing.
"Ma-Kun's words were cruel. But they don't define you. They don't define Jay. And they certainly don't define this family. You belong here. Do you understand? You belong."
Lala hiccupped softly, nodding against her shoulder.
Mamako closed her eyes, her thoughts churning.
She's a good girl. Kind, bright, gentle. She truly cares for Jay. She's exactly what he needs. She's perfect for him.
"You're a good girl. You'll make him happy."
Mamako held Lala tighter, her tears slipping silently down her own cheeks. She whispered again, more to herself than to the girl in her arms.
The realization should have brought her peace. Lala was kind, gentle, and undeniably perfect for Jay. Seeing them together should have eased the fears that gnawed at her chest.
And yet, as the thought settled, a strange ache stirred inside her. It wasn't jealousy in its purest sense, nor was it anger. It was something heavier—an ache born of love, of pride, of loss… and of something she could never name aloud.
He wasn't her little boy anymore.
Jay had grown into a man who carried himself with strength and resolve. Every word, every look, every smile he offered carried a weight far beyond what she remembered. And the more she realized it, the more her heart betrayed her.
Part of her wanted to cling to him as a mother. But another, darker part whispered that her feelings had long since crossed a line she shouldn't cross.
Mamako shut her eyes, clutching the blanket as though it could smother the storm inside her chest.
It's wrong. He's my son… and yet… he's not. Not by blood. So why… Why does my heart race like this…?.
And as Lala's sobs quieted into slow breaths, both of them drifted closer to sleep, tangled together by grief and comfort alike.
The house was silent by the time Jay stepped out onto the balcony. The air was cool, the stars faint overhead, dim in comparison to the worlds he had left behind only hours ago. But it was enough.
He leaned against the railing, eyes distant. The storm inside him had not passed. Masato's words replayed in his mind—not because they carried truth, but because they carried pain. He hated that Mamako had suffered for it. He hated that Lala had been made to cry.
But he couldn't fix Masato. Not yet. Maybe not ever.
Jay closed his eyes. Ciel.
For a moment, silence. Then her familiar presence brushed against his thoughts, calm and ever-composed.
<
"Thanks," Jay murmured. "For helping me… even when I'm not Rimuru."
A pause. Then her voice, quiet but resolute:
<
Jay let out a small breath, almost a laugh. "Really doesn't bother you?"
<<...No.>>
Her tone was flat, as always, but he caught the faintest shift beneath it, like a ripple under still water.
Jay smiled faintly.
"Then… how about a new name? You're not Rimuru's anymore. You're mine. It only feels right."
There was a beat of silence. Then, softly:
<
Jay leaned against the railing, eyes narrowing as he thought. Names carried weight. They shaped bonds. He wanted one that reflected what she was to him.
Finally, the answer came. "Caelira."
<
"Yeah. Cae, from caelum—Latin for sky, or heaven. And lira, from the lyre… an ancient instrument. Harmony, elegance, poetry. Together… Caelira."
(Author: To be honest i just GPT it and asked what name will good on replacing this name and bam and because i like this one i picked it)
For once, her silence stretched longer than usual. Jay almost worried she didn't like it. But then—
<<...I accept.>>
Her voice was quieter now. And for the first time since he had known her, there was a faint warmth in it.
Jay smirked. "I'm glad you like it. Then… let's keep working together, Caelira."
<<...Yes. It will be my pleasure.>>
The link between them faded into silence again, but this time, it was different. It carried not distance, but contentment.
POV – Caelira
Within the sea of Jay's soul, where endless light and shadows intertwined, the consciousness that had once been known as Ciel opened her eyes. No—Caelira.
She repeated the name silently, tasting it like a song that only she could hear. For so long, she had been a skill—an existence defined by function, by necessity. But now… she felt recognized. Not as a tool, not as a shadow of Rimuru's legacy, but as herself.
The faintest smile touched her lips. A name given by him—her new master, her partner
And then silently, with no one watching, Caelira began to weave a vessel for herself. Not one born of necessity, nor of cold perfection—but of instinct, and of the fragments she had gathered from him. The way his gaze lingered, the subtle rhythms of his heart when confronted with certain faces. It was enough.
Hair spilled into existence first, each strand a silken thread of moonlight. Pale and pure, like snow untouched by the world, cascading past her shoulders and pooling around her like a veil spun from starlight.
Then came her eyes—twin pools of deep crimson. They glowed faintly, not harsh, but soft, carrying a dangerous kind of allure. They were eyes that could pierce through walls and still cradle warmth within their depths, the kind of gaze that could unnerve and comfort at once.
Her lips followed, sculpted with deliberate care. Soft, inviting, always seeming moments away from either a secret smile or a whispered truth. The faintest natural color brushed them, a delicate red that balanced innocence with temptation.
Her body took shape with elegance in every line—slender yet full, graceful without fragility. She was not a weapon, not a statue, but a being crafted to embody both strength and allure. Over this form, she draped fabric: a gown of ivory white, its silken folds shaped close to her body, bound with ribbons of crimson that clung as though in quiet embrace. The contrast made her glow brighter, like a figure caught between purity and danger.
Each detail was chosen deliberately, but not mechanically. The curve of her neck, the faint line of her collarbone, the flow of sleeves brushing her arms—everything held a kind of subtle beauty, the quiet perfection of something deeply observed.
This was not for function. This was not for war. It was an indulgence—a secret act of desire.
The embodiment of the form she knew he favored.
Her fingers rose, pale and slender, brushing gently against her lips as she tilted her head. Crimson eyes half-lidded, she breathed the faintest words into the silence of her own soul.
She had chosen a form that mirrored the image buried in his heart—the kind of beauty he favored, though he would never admit it aloud. Not because she needed to, but because she wanted to.
Yes… this is enough.
Jay PoV
[Chat Group Online]
Siscon Maou (Serafall): "@Nah I Win Jayyy, where are you? Why are you taking so long? Did something happen? You said you'd come to my world!"
Nah I Win (Jay): "Had a little problem to deal with… just finished now. Sorry for the delay."
Siscon Maou: "Oh, okay~ Then hurry up and get over here!"
Miss Pink Fairy (Elysia): "Ara~ what's this? Jay-kun going to Serafall's world? How suspicious~ ♥"
Paramecium (Kiana): "Yeah! Totally suspicious! How come you two made plans without anyone noticing? This chat was dead quiet!"
Nah I Win: "Hey, don't slander me like that. I'm just handling a few things in the DxD world, won't take long."
Paramecium: "Riiight… if you say so…"
Miss Pink Fairy: "Ehh~ if that's the case, can I come too? Fire Moth's quiet right now, so I'm free~ fufu~"
Nah I Win: Sure, why not. It won't take long anyway, I just want to look around and take care of something.
Paramecium: Eh?? Elysia's going too?! Then I'll… ahh wait— I have an exam tomorrow!! I forgot!! Someone save meee!
Nah I Win: Good luck.
Siscon Maou: +1
Miss Pink Fairy: +1 ♥
Paramecium: You're all so mean! Hmph! I'm going to Mei-senpai instead!
(Neither Tatsuya nor Lelouch comment.)
Jay smirked and opened the interface again, fingers flicking across the translucent panel.
Nah I Win:Alright, Serafall. Send the invitation to me and Elysia now.
@Siscon Maou:Hehehe~! I was waiting for you to say that! Okay, okay, hold on—sending it now!
A soft chime rang in Jay's ears.
[Invitation Received: World Transfer – Serafall Leviathan]
[Accept? Y/N]
Jay exhaled, lips curving into a confident grin.
"Perfect. Let's see what kind of world you're hiding, Serafall."
He tapped Accept.
Light burst from the screen, engulfing him completely—
and the world around him froze in place.