Transmigrate In The Novel Extra

A guy transmigrate in the novel extra....... Yeah that's it.... I know it's not interesting... but my brain is too cooked when I am writing this ........yes I also know there is a lot of the fanfic from The Novel Extra but hey why not try one? (English is not my main language so I hope you don't mind a bit of grammatical error) (The Novel Extra is not mine)