An otaku who originally just loved Kamen Rider happened to get the power of Kamen Rider in a chance encounter, and expanded this power to a terrifying level.
Kuuga's ultimate state can destroy the world, ooo's ice alliance can return the world to the Ice Age, Kato's hyper state can penetrate the earth with one shot, and w's extreme form can emit light stronger than the sun...
The most important thing is that he can travel through various worlds to collect girls.
Ps; This book is a comprehensive manga with the theme of Kamen Rider. The protagonist's power is mainly Kamen Rider, but there will also be other powers. After all, you can't only use Kamen Rider's power when going to other worlds in the future.
This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.