"I see. I understand."
After learning the identity of the culprit, Kars was ready to give her a warm welcome the next time they met.
Reisen, for her part, looked completely unconcerned. Whatever happened to Tewi Inaba in the end, she didn't care. In fact, worrying about that girl would mean she had a screw loose.
"But what's going on with you and Master?" Although it was awkward to ask, the situation was simply too astonishing. Reisen couldn't help but be curious.
"The doctor is interested in my physical condition and thinks my body is very special, so she wanted to examine me. But her demeanor made me uncomfortable, so I struggled and resisted, and then you all came in."
"Phew~ So that's what happened. I figured Master wouldn't suddenly have thoughts like that." Reisen relaxed after hearing the explanation. However, she quickly recalled what Kars had mentioned and started to worry slightly about his future.
"But it's not a good thing that Master is interested in your body. Who knows if she'll try to use you for experiments or research later."
"Huh?" Kars was momentarily dumbfounded. He felt he had just heard something very alarming. Being a patient here meant he could be subjected to experiments and research? Was this place that scary?
Reisen also instantly realized her mistake, realizing that her words were too frightening. If word of this got out, no Youkai would buy experimental medicine from Eientei anymore! She might even end up having to shoulder all the responsibility herself.
"That… you must have misheard me! There are no experiments or anything like that! At most, it's just research!" Reisen frantically tried to explain to Kars, trying to prevent any unnecessary misunderstandings. However, her flustered and incoherent speech made it very difficult to believe her.
If Kars wasn't completely exhausted, he would have fled the place immediately. This was too terrifying.
Meanwhile, Eirin Yagokoro looked at the various reports on Kars's blood sample. Her expression was somewhat incredulous.
"This completely defies biological principles, doesn't it?" Although she didn't know much about vampires as a species, Eirin Yagokoro felt that a normal vampire wouldn't be like Kars. Judging by the data in the report, Kars's body, after absorbing energy, autonomously converted it into a more pure form, so pure it could even be used as an energy source.
Not only could this energy be used as a power source and converted into powerful weapons, but she also discovered that it contained a powerful revitalization effect on cells. This effect also endowed the cells with strong vitality and promoted physical evolution. If this continued, Eirin Yagokoro almost didn't dare to imagine what the outcome would be.
Thus, she felt the situation completely defied biological principles. Even Youkai and gods weren't as exaggerated as Kars's condition. Moreover, if Kars's energy-rich blood cells were made into medicine, they could have the effect of a panacea. Various diseases, viruses, and even disabilities would be destroyed by these special cells, and his natural evolution would promote the recovery of missing body parts.
Therefore, the more she understood Kars's uniqueness, the more excited Eirin Yagokoro's eyes became. For her, Kars's body was a huge treasure trove from which she could gain so many benefits through research.
However, after her excitement, Eirin Yagokoro thought about Kars's physical condition. The reports showed that his body would likely recover completely in just a short amount of time, and this brief period was simply not enough for her research.
"Do I need to resort to some small tricks?" Eirin Yagokoro was considering extending Kars's hospital stay. Otherwise, she would completely lose the opportunity. After all, it was impossible for him to naturally fall ill, and this time was only due to eating a poisoned candy. However, this course of action gave Eirin Yagokoro pause. As a doctor, giving medicine to her patient was completely inexcusable, especially to a small child.
"Hmm… a small child." Eirin Yagokoro thought of something and a smile appeared on her face. Children were meant to be tricked, right? Furthermore, he was currently at Eientei. Whatever she said was the truth, since children didn't know any better.
"Huh!? I still need to stay in the hospital? But I feel completely fine!"
"Then, are you a doctor?" Eirin Yagokoro countered. Kars silently shook his head in response to the question.
"So, you're not a doctor. Of course, you don't understand the reason. And I wouldn't harm you."
"But your eyes look quite malicious, Doctor."
Hmm? Are my eyes that obvious? Eirin Yagokoro wondered internally, but quickly put on a completely innocent expression.
"How could that be? I'm merely interested in your body; how can that be called malicious? In any case, you will stay here at Eientei for observation for the next period. Reisen will be responsible for taking care of you. You can tell her anything you need."
"…I understand." Although reluctant, Kars nodded and agreed. Eirin Yagokoro was very satisfied with his compliant demeanor. She stroked Kars's head, then went back to prepare for her upcoming research.
Meanwhile, Reisen also learned that she was tasked with looking after Kars. At this moment, Reisen was certain that Kars had been targeted, and she couldn't help but feel sorry for him.
Later that evening, Kars tossed and turned in bed, unable to sleep. It wasn't because he was unaccustomed to the bed, but because he wasn't used to sleeping alone. Now, sleeping alone on the bed felt especially strange, since he was used to sleeping with others every night. Not having a soft body to hold, and not having his face buried in soft breasts, made Kars feel very uncomfortable.
Just then, the room door opened. Reisen, coming to check on Kars, carefully opened the door. Seeing Kars still awake in the room, she paused, but quickly remembered that Kars was a vampire, so staying up at night was normal. When Kars saw Reisen, his eyes lit up. He wondered if there was a good chance she would stay to accompany him and help him fall asleep.