You walked into Paulownia Academy High School til you see the casts from Corpse party who are part of the Paulownia Academy High School who got stucked in Heavenely host

Sayaka Ooue: Hello!

Haruyuki: Sayaka Chan!

Sayaka Ooue: Oh Inumaru, shut up! Leave me alone.

Aiko Niwa: Hm...a new student?