C34 The Blood Letters Slept with Each Other

The hospital is quiet and peaceful, and at this moment, in a quiet and gloomy teacher... It was extremely restless. This was a chemistry laboratory, usually closed when there was no class. It was summer vacation time now, so other than the school police on duty in the on-call room, the school was on duty. There was no one in the school, which was usually very noisy. At this moment