Just as Rias was guessing which hero the other party was, Asia quietly came to Rias's side, tugged her sleeve, and whispered.
"She is Florence Nightingale, the first female nurse in history."
"Eh? She… she is Nightingale!"
Rias widened her eyes, confirming the name with Asia again. After receiving an affirmative reply, Rias was stunned.
Nightingale, she hadn't expected that even this greatest female nurse would appear here.
Although she wasn't a nurse, Rias also knew the "Nightingale Pledge," which was a pledge almost all nurses worldwide had to recite before graduation.
Nightingale becoming Asia's teacher? Possible! Although Nightingale didn't believe in life, her medical abilities were of great help to Asia.
It was just, why did Nightingale, as a nurse, give her such a terrifying feeling? She was clearly a nurse, so why did Rias feel that she was no match for Nightingale?
Nightingale ignored Rias. She slowly walked to Inaba Tsukiyo, who was sitting.
At this moment, Inaba Tsukiyo had not yet woken up, maintaining a kneeling posture on the ground, like a statue.
Nightingale placed her hand on Inaba Tsukiyo, closed her eyes, sensing something. After a while, she opened her eyes and nodded.
"How is Master (Shishou)? Summoning us this time must have been a huge drain on her, right?"
"Hmm, most of Master (Shishou)'s magic power has been depleted. However, as the magic power is consumed, another force is also helping to restore her magic power. I just don't know if this will have any negative effects on Master (Shishou)."
Nightingale had never seen such a situation and couldn't accurately judge Inaba Tsukiyo's condition, but her vital signs showed no problems, so the situation was still quite good.
"Wait a moment, Miss Nightingale. I want to ask, is Master (Shishou) conscious right now?"
No-Name (female) suddenly stepped forward and quietly asked Nightingale in her ear.
"Hmm? I'm not very sure. But looking at the situation just now, Master (Shishou) should be unconscious. The reason she can control this space is probably her instincts at work."
"Instincts… huh? So she's unconscious, and even if something is done now, Master (Shishou) wouldn't know?"
"…That's correct. But what do you want to do while Master (Shishou) is unconscious? Although Master (Shishou) isn't a patient, I won't just stand by and watch you mess with her!"
Nightingale looked at No-Name warily. If No-Name showed any ill intentions, she wouldn't hesitate to give her a joint lock.
"No, don't look at me like that, Miss Nightingale. I'm not Serenity, nor Kiyohime or Minamoto no Raikou. I wouldn't do such a thing while Master (Shishou) is unconscious."
Of course, No-Name didn't mention another person.
Thinking that she and the other person had a good relationship, she decided to save face for the other person and not mention that name.
"Then what do you want to do?"
Nightingale relaxed. Since she wasn't trying to pull any stunts while Inaba Tsukiyo was unconscious, she didn't care.
It was just, what kind of thing needed to be done when the person themselves was unconscious? This made Nightingale a little curious.
"Actually, this was requested by those guys who give me a headache. When they were summoned just now, they asked Meli to extract a little something from them collectively, which they want to give to Master (Shishou)."
Thinking of those guys who made her hands ache, No-Name was very helpless.
Of course, if it weren't for Red A's help, she would probably have died of exhaustion, even with her Heroic Spirit body.
Fortunately, the kids' group had the help of Miss Berserker, otherwise, if she had to take care of those children, No-Name would feel even more like dying.
No-Name took out a small, transparent box from his body. Inside the box was a tiny crystal-like object.
"Oh? This is… blood? No, this is essence blood containing a bloodline? Could it be…"
Nightingale instantly recognized the item and, considering a certain possibility, looked at No-Name in surprise.
"Hmm, ever since we learned that lord alaya allowed that Red Dragon to stay inside Master's body, they came up with this method to better assist Master. I never expected such a method to come from their minds."
"Aren't you unconsciously saying something very rude? Aren't you afraid of being scolded when you go back?"
"Haha~ If they really wanted to scold me, then only one person would be left to cook. They would never do anything to reduce their own food supply, so you don't need to worry about me."
No-Name smiled. He clearly knew those guys' lifelines; as long as he held onto that lifeline, he wasn't worried about them wanting to resort to violence.
Nightingale, naturally aware of those people's quirks, rolled her eyes helplessly. She took the box from No-Name's hand and carefully opened the lid.
The moment the lid opened, the aura contained within the box emanated out.
"This aura… a dragon?"
This aura was detected by Rias and others nearby. Rias instantly recognized its identity; it was a dragon's aura.
"Hmm~ To extract essence blood from the heart, I have to admire these guys' bold ideas. However, for a Heroic Spirit, such a thing is still quite simple."
Furthermore, they had all been strengthened by the Holy Grail, so even if their hearts were pierced, it wasn't impossible for them to recover.
Because they were worried that one person's blood wouldn't be effective, did they gather everyone's essence blood? These guys are as reckless as ever.
If it were anyone else, Nightingale would absolutely not do such a thing, but if the target was Inaba Tsukiyo, then it was different.
Although Inaba Tsukiyo's physical strength was only that of an ordinary person, there had always been a certain power within her helping her perfectly integrate power.
Without changing her human identity, Inaba Tsukiyo should be able to simply transform her heart into a Red Dragon's heart through the essence blood.
To prevent Inaba Tsukiyo from waking up prematurely, Nightingale immediately proceeded with the operation.
Although it was called an operation, it was merely implanting the essence blood into Inaba Tsukiyo's body, allowing the essence blood to automatically fuse within her.
Inaba Tsukiyo's body did not resist the entry of the essence blood. Originally, the essence blood was the boss, but after entering the body, it seemed to enter a group of bosses pretending to be new, and began to tremble with fear.
Thus, the fusion of the essence blood proceeded perfectly.
At this moment, Ddraig, who was playing games with Herrscher Tsukiyo inside Inaba Tsukiyo's body, suddenly felt something and widened his eyes.
"This is!?"
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