I Kill Evil Spirits on Campus

I traveled to a different world and inherited a private academy for girls? There always seems to be something wrong in this school. Even though I am the same age as the students here, they have to call me the dean of the college. But why do I always feel like there is a weird atmosphere in my school? The flashing lights in the dormitory, the mirror in the bathroom, the bright red liquid flowing on the floor in the biology laboratory... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.