SI-VIS is a co-ed music group, led by Yosuke, shaking up the global music scene with their unmatched vocals and performances. However, they are actually heroes in disguise, battling against mysterious forces threatening the world. They convert audience energy at live performances into combat power. Luckily, the battles appear to be ordinary concerts to the public, keeping their identity a secret.

Twenty-second Series.

Rei Ichidou, Gou Reietsu, Kiyoshi Shusse, Jin Daima, and Dai Monohoshi are five mischievous boys attending Ichiou Junior High. Each with an eccentric personality and a knack for chaos, they've earned a reputation as the infamous "Kimen-gumi." One day, new transfer student Yui Kawa and her friend Chie Uru encounter the group and soon find themselves drawn into their antics. Around them are other colorful cliques—from the handsome "Iro Otoko-gumi" led by Shou Kireide, to the delinquent "Ban-gumi" led by You Nihiruda, the athletic "Ude-gumi" led by Kai Undou, and the tough girl squad "Onna-gumi" led by Jako Amano. As time passes and a new spring begins, the everyday lives of these eccentric students unfold in a lively and comedic school story.

Toujima Tanzaburou has spent his entire life chasing a dream: to become Kamen Rider. Now, at 40, reality has nearly caught up with him, and he's on the verge of letting go of his childhood fantasy. That is, until he gets caught up in a crime wave led by the "Fake Shocker" gang—turning his long-time dream into something far more dangerous. What starts as a pretend hero's journey quickly becomes something real. The ultimate Kamen Rider fantasy is about to begin!