Why did I reincarnate, in a romance Anime!?

This is a FanFic about a guy named Jin who reincarnated in an anime called, "3D Kanojo Real girl", if you don't know the anime don't worry, It's a romance type and I know some of you hate it, so that's why I added a system tag to incorporate a system in this. In the Anime The guy is an Otaku who loves 2D girls to escape from 3D girls who bullies him since he was elementary. And The girl on the story was Iroha who dated a lot of boys, because of it a lot of girls hate her, but she was a beauty so they can't do much about. Then the two met. Also I don't own the cover.