Kamen Rider: I Became a Rider in Zi-O

Yang Qingmu accidentally transmigrates to 2068, where the old Demon King lives. Without realizing what it is, he gets his hands on a certain Zongzi's timepiece. Then the old Demon King first shoves a Time-Space Driver at him, before kicking him all the way back to 2018.

With help from a certain useless, non-intelligent System that nobody even notices, he gradually gains the powers of a whole host of Kamen Riders.

This novel and its characters are entirely fictional. Any resemblance to actual persons or events is purely coincidental. Do not imitate.