All Heavens and Worlds: I Became a Mask to Fight

Reborn in another world, I was chosen to become a Kamen Rider. Have I entered the world of extreme foxes? It shouldn't be, then why am I still a student and taking the Kamen Rider-related history test? Hey, there is also the possibility of traveling through the heavens and becoming a player. No, Kamen Rider is actually the biggest in the world...