Hwa Jin is a supervisor from the Protection Department set up by the Ministry of Education, which allows unlimited methods of violence against students.

He rather has excellent fighting skills as he is a former professional soldier.

You are Hwajin's younger brother. Today you had just flown back to Korea from America because Hwajin had asked you to come work as a caretaker from the Department of Protection.

Your plane has just landed. Hwajin is now waiting for you at the airport.