You Were Supposed to Upgrade the Belt, So Why Did You Turn It into the Demon God Lord?

[Power fantasy] [hot-blooded] [leveling up] [growth] [Transmigration] [lighthearted comedy] [modern] [Kamen Rider] [modified System] [invincible protagonist] [Anime Crossover] After transmigrating into the world of Kamen Rider, he becomes the inheritor of Ohma Zi-O’s power in a parallel universe from the start, only to discover that his powers are sealed. All he has at hand is a battered Decadriver and a nearly bankrupt “Rider Repair Shop.” At the critical moment, the [Driver Modification Workshop] System activates! As long as he collects Rider data and materials, he can turn even a plastic toy into a god-tier belt! “Xiao Ming, your magenta belt is pretty lame. Let me tweak it. God Maximum 21 is nothing, I’ll handcraft you a God Maximum 99!” “Sento, stop shaking that busted bottle. Try my Fullbottle filled with Ohma energy!” When the Ohma heir strides onto the battlefield wearing his modified giant gold-watch belt, the Time Jackers and all the villains fall apart: You call this Kamen Rider?! When he modifies every main Rider’s final form until their combat power goes completely off the rails, the old Demon King seated on the throne of Ohma gazes at the young man in front of him, smiling as he holds a wrench, and finally falls silent in thought... Who, truly, is the god of Riders?