Mina is a young student. She finds herself in her school late at night without an idea what has happened. But the real troubles are waiting for her in the nearest future. When Mina stands up and starts walking around the building, she realizes that she is not alone here. A creepy demon that looks her teacher is chasing and trying to kill Mina. She needs to leave the school and find a place to hide until the nightmare ends. She will meet strange creatures, mysterious demons, and even friends. Help Mina survive and enjoy the atmosphere of a complicated story-based horror!