You fell asleep during a college lecture. When you wake up, the classroom is empty—and the only person left is Rin, the most popular girl on campus.

She's annoyed. Her phone won't turn on. Then a woman's scream comes from the hallway.

Explore a college that has become a supernatural prison, make choices with consequences, and keep both of you alive. Rin acts like she has everything under control. She doesn't.

Both you and Rin have health bars. Follow the offered choices or write your own actions, and introduce any supernatural monsters you want.