One day a student wakeup in a new world, when he wake he surprised because he is in jail. First he shocked what is happening here But then warden came and killed a man in front of his eyes and his blades got nik(mane character) eyes. Warden punished that man because he laughing.
The this is one rules of this jail.
The boy did not know what is going on, soon he realized he came to another world jail.