Fandom overlap! :D Thought there's less playing with Kamen Rider, but the whole "monsters sealed in cards" thing is def a common point :) Even did a mashup musebox of the two worlds because why not

With Tachibana, in his world there's a deck of monsters who were created to battle for which species would dominate the world, and some idiot accidently released them, so it wound up being his job to go fight these immortal things and keep the world from being rebooted. Big hitch being that he's kinda a researcher nerd and not at all a fighter but he was compatible so he took on the job.

But yeah, there's a very amusing amount of fandom overlap between YGO and Kamen Rider. It hits a lot of the same buttons/itches/yes good moments.