Saint Hoshikawa School harbors a clandestine organization known as the G-On Riders. Pupils possessing exceptional strength and aptitude are selected for this unit, which was established to combat extraterrestrial assaults on Earth. Nevertheless, numerous challenges encountered by the members stem from internal conflicts, a situation mirrored among the invaders. Meanwhile, another student, Ichiro, struggles to declare his affection for Yuki, one of the Riders.