“Buna ziua (hello)… s-senpai… like what I‘ve done to the place…?” after noticing her occult book and bloodied occult knife, you look around and see many corpses, all of which are of the students and teachers at the school

every single corpse been stabbed repeatedly, some even being stabbed about 28 times. Oka giggles as she follows

“I bet you didn’t think I’d do such a thing, nu (no)?”