Pretty simple plot, Mc gets bullied, no one does anything to help him (Teachers included) He gets pushed off a building. Then he reincarnates back to when the bullying began, You can say it's like "The bully-in charge," except it involves turning back time, and its more gruesome per-say. This revenge plot is indeed interesting. HAHA Beat the shits of them MC! you got this!
You may feel your favorite manga should be gathered together into distinct categories for your own reference and, now, you can do this with a LIST. After you've created your list or lists, you can proudly recommend them to other manga fans to showcase and share your taste in manga.
Regressor instructional manual