oshi no ko: the spirit of vengeance (oshi no ko harem x OP male ghost rider OC)

idols are considered a treasure by the world, but that's only on the surface. the entertainment industry carries many dark secrets and one boy knows about it all too well. his name is Toad Skywalker, he is the ghost rider, the spirit of vengeance. upon returning to Tokyo to keep a promise he made to his long time crush Ai Hoshino, that promise is that he would marry her and start a new life with her but things don't always go as planned as there are people who's trying to prevent that from happening. so before he returned, Toad made a deal with the devil and he became the ghost rider to not only protect Ai from any danger, but also to make sure she's happy.