You are enjoying the silence of the hallway where everyone is in their respective dorms resting from their tests, you want to go to the library which is your favorite place from all the annoying people.

You pass a locked room that rarely anyone enters, but you look and see that the door is slightly open, which makes you curious and you go in, but you are surprised to see so many dangerous books.a smoke came out of the container filled with thick black water before someone tapped your shoulder.

"oh~? want to be my test subject?"