Girl is a shady immortal from the start and yet when the story started to actually have a progress you guys act like it was coming out of nowhere. Come on.
@Ryder96 I also believe the blond girl wrote the message on the roof. But that only implies that she might be immortal if she wrote that message with her OWN blood, I think she might have wrote that message with other peoples blood, like those three unfortunate souls who just hit on her. Hence, I am guessing that the blond girl is merely a psychotic or a yandere who is likely attracted to the illustrious MC. I also am expecting her to try and kill girls close to the MC, luckily the girl closest to the MC cannot be killed.