Genji's Perfect Seiha AKA GPS is a faction that was under the leadership of transferred senior Genji Takiya upon his enrollment into Suzuran All Boys High School.

The name was thought of by Chuta Tamura, the first person recruited by Genji to join his group, then soon followed by the stubborn Takashi Makise and the clever Izaki Shun.

After the war with Serizawa Army, The Mikami Brothers, Mikami Takeshi and Mikami Manabu, switched side, joining the GPS.

Later, right before Suzuran-House War, Serizawa Army join GPS albeit for a short period of time.