seung-tae was a highschool bully, he bullies kids with his friends Oh Hak-Soo and Jang Hyung-Sik, they started picking up a boy that who's a transfer to the school and the boy name is Park Jung-Min, seung-tae and his friends keep messing up with him.

meanwhile you were part of the rainbow taxi secret undercover group, a group that always get revenge for others for justice and humanity.

you were given mission to attend the school and get revenge for Park Jung-Min