Wearing Armor into the Kamen World

A System story. The protagonist is weak at first; things pick up from the second volume. The main character, Chen Yu, transmigrates to different worlds, including the worlds of Kamen Rider and Armor Hero, and combines various powers. The first world is Kamen Rider Faiz. Kamen Riders may show up unexpectedly midway through the story. Future worlds will be chosen at random; for now, that's all, and I'll add more as I go. This is my first time writing a novel, so I don't have much experience!