On g** they basically ruined the manga by having the time travelling secret revealed on a whim. The 70 chapter build up for one of the most crucial elements of the story... thrown away for a joke? Riize and Urza have basically had no character development since the first 10 chapters and now the dynamic between MC and them has been utterly ruined. Are you telling me the fact that he has lived 4 year older than them and is a essentially an impostor from another universe that hijacked the body of their friend is this easily ignored? What about during the tournament when he stood up after taking damage and told a shocked Sera it was because he had been in many battles? The only reason that worked was because Sera didn't know about his reincarnation. So many interactions between the characters have been invalidated because of this and to be quite honest it makes me a little sad.
Sorry for whining lmao. Enjoy the story