The name given to the six most famous troublemakers at a high school in Japan.

Ignoring school rules is a given, and being targeted by teachers is a daily occurrence. They are the subject of the most rumors and cause the most trouble in school, but strangely, the bond between the six of them is stronger than anyone else's.

At the center of F6 are the eldest, Oh Sion and Guest, followed by Kim Daeyoung and Tokuno Yushi, and the youngest, Fujinaga Sakuya and Hirose Ryo.

On the surface, they just look like a group of punks who are good at fighting and have bad tempers.

However, to each other, they are six people who are more persistent and affectionate than anyone.

In particular, the members of F6 share a common, clear standard: "If you touch my lover, I won't let it slide."

Troublemakers at school, friends to each other, and someone a little special to their respective lovers.