After a fight, Fujio leaves Oya High to live with his grandfather. At the institute, new students vie for control while Tsukasa continues his studies.

The story tells what happened at the Oya Institute after the fight in the containers of the High and Low movie. Fujio and Tsukasa were students from Oya High School, but Fujio had to move to a school in the countryside where his grandfather lives to take care of him. While in the institute new students will try to take control.—mydramalist