The portal tore open without warning.
No announcement. No trembling of magical energy. No courteous knock against the barriers that separated the Walpurgis chamber from the rest of the world. One moment the air was still, and the next it simply split, like old fabric giving way along a seam that had always been there, waiting.
He stepped through it like a man walking into a room he'd built himself — because, in a sense, he had.
The silence that followed was the loudest thing any of them had ever heard.
Guy Crimson noticed first. He always noticed first. His crimson eyes slid from his wine glass to the figure in the doorway, and the corner of his mouth curved upward in something that wasn't quite a smile — it was more like the satisfied expression of someone who had placed a bet long ago and was only now collecting.
Luminous Valentine's fan stilled mid-flutter. Frey's composed expression fractured, just barely, just for a moment. Ramiris actually rose six full inches into the air, wings buzzing with involuntary excitement. Dagruel's massive hands went flat against the table, a subconscious gesture of grounding himself. Leon Cromwell, who prided himself on never being surprised by anything, went very, very still in the particular way of a man suppressing a gasp.
Milim stared with her mouth slightly open, which was unusual. Usually Milim's mouth was fully, catastrophically open.
Dino, who had been half asleep with his cheek resting on his fist, opened one eye, processed what he was seeing, opened the other eye, and then slowly sat upright for the first time in what had probably been several Walpurgis gatherings.
Clayman was turning an interesting colour.
Rimuru, newest among them, looked between the figure in the doorway and the faces of every ancient, powerful, terrifying Demon Lord in the room — all of whom were exhibiting something suspiciously close to awe — and quietly decided to pay very close attention.
The figure in the doorway didn't move. He didn't need to. He simply stood there and let the room catch up to the fact of him.
Cionoan.
The name moved through the chamber like a cold current through deep water. Not spoken — remembered. Dredged up from the kinds of depths where memories became mythology.
He looked, frustratingly, like a man who had simply decided that time was a suggestion and had opted out of it. Ageless in the way that pre-dated the word ageless. He wore no crown, no ostentatious display of power. His clothes were simple, dark, and slightly rumpled in a way that suggested he'd dressed without a mirror or without caring, and that both outcomes were equally fine with him. His eyes were the colour of deep earth — old earth, the kind that had been old when the world was young — and they moved across the assembled Demon Lords with the unhurried quality of someone taking a casual inventory.
The kind of inventory that didn't need to check twice.
Guy was the one who finally chose to break the silence, because of course he was. His voice carried the practiced ease of a man who had been performing nonchalance for longer than most civilizations had existed.
"My my my," he said, swirling his wine with idle grace. "How much time has it passed since he last attended a Walpurgis?"
The question landed like a pebble in a still pond, and the ripples moved.
Luminous recovered her composure with visible effort, pulling it around herself like a shawl. "I thought you hated Walpurgis," she said, and if there was the faintest tremor of disbelief beneath the cool accusation, she would deny it to anyone who brought it up later.
Frey's fan resumed its motion, and she smiled over the top of it — the rare kind of smile she didn't bother hiding. "Such a pleasant surprise."
"I didn't think I would see you again!" Ramiris burst out, and the restraint she'd been white-knuckling for approximately ten seconds finally gave out entirely. She shot forward through the air like a cork from a bottle.
Milim, as though the movement had broken her out of her trance, exploded to her feet. Her chair skidded back three feet. Her arm shot out, finger pointing with the full force of someone making an extremely important legal argument.
"OF COURSE NOT!" she declared, her voice filling every corner of the chamber with the boundless enthusiasm of someone who had apparently been waiting years for the opportunity. "You're the eldest of us! The OG demon lord!"
She wheeled on Guy, finger pivoting in his direction like a compass needle finding north.
"Right?! Right?! He can't even argue — he knows it!"
Guy's smirk widened precisely one increment. He said nothing, which was, somehow, agreement.
Dino pinched the bridge of his nose. The motion was slow and deeply weary, like a man who had accepted his lot in life but reserved the right to grieve it quietly.
Frey let out a soft laugh behind her fan. Luminous muttered something under her breath that contained the words disrespectful and imp and possibly one or two others that were less printable. Clayman looked as though someone had taken his very carefully organized sense of hierarchy and turned it into a paper plane and thrown it out a window. The vein at his temple had opinions.
Rimuru, watching all of this, was quietly revising every assumption he'd made about the power dynamics in this room.
Cionoan, for his part, had watched Milim's outburst with the calm expression of someone observing weather. Not unkindly. Simply without surprise. When the room had absorbed the declaration and settled back into something resembling order, he moved — unhurried, deliberate — and took a seat at the table as though it had always been his seat, which, technically, chronologically, it had.
"Unwelcome?" he said. His voice was the kind of quiet that didn't need to be loud to reach every corner. "Am I an unwelcome guest?"
Guy's crimson gaze sharpened beneath the veneer of lazy amusement. The smirk didn't leave his face, but it changed in quality — became something with more teeth in it, more genuine interest.
"Unwelcome?" he echoed, turning the word over as though examining it for weight. "Oh no, no… just unexpected." He tilted his glass slightly, a gesture that was almost a toast. "Tell me…" The sharpness behind his eyes caught the light. "…did you come for bloodshed, or boredom?"
The room waited.
Cionoan looked at Guy with the particular expression of someone who had known him for a very, very long time — long enough to find his theatrics more charming than irritating, long enough to remember when they hadn't been quite so polished — and said, with complete and total sincerity:
"Pure boredom."
The silence that followed was a different kind of silence than before. Before, it had been shock. This was something more like collective recalibration.
Guy stared at him for a moment that stretched. Then he set his wine glass down.
"Boredom," he echoed. The word sounded strange in his mouth — he was tasting it, testing it, finding it somehow more alarming than the alternative. "Really." He leaned forward, just slightly, elbows resting against the table with the deliberate casualness of someone who was not, in fact, relaxed at all. "An old timer like you. Has nothing better to do. Than show up here." A pause. "Out of boredom."
Luminous made a sound that was suppressed laughter wearing a very thin disguise as a snort. She turned it into a cough. Badly.
Rimuru looked between the two of them — the First, and the one who had believed himself the oldest — and had the distinct, vivid impression of watching two tectonic plates greet each other with excessive politeness over a very long geological grievance.
Cionoan met Guy's sharpened gaze with perfect equanimity.
"The world," he said simply, "is less interesting than it used to be." A brief pause. "Usually." His eyes moved, deliberately, across the faces of the assembled Demon Lords — resting for a fraction of a second on Rimuru, on Milim, on the unlikely collection of the powerful and the strange that had gathered in this room.
Something shifted in his expression. Not quite warmth. Something older than warmth. Something that had been cold for a long time and was remembering, faintly, distantly, what heat felt like.
"But occasionally," he said, "it surprises me."
Guy held his gaze for a long moment.
Then the smirk came back — wider than before, and this time reaching something that might, in the right light, be called genuine.
He reached for his wine glass, raised it, and said nothing.
Which, from Guy Crimson, was the loudest welcome in the room.