NoWoRRyMaN
My guess: They were together with each other as lovers and she new he had powers. They even had a daughter named Jessica. However, he was forced to reincarnate, but he said he would regain his powers and memories of her later, so she raised him until then. Unfortunately, before he reincarnated, Jessica was killed in a haunted tunnel... that's right; he is boinkin the ghost of his daughter after both of them lost their memories!!! đ đ đ»
There are multiple theories i had. Right now I Donât think Rebecca is her real name I feel like she is an older version of one of his harem members and As it said paradox insted of time paradox it could be something unrelated to time travel at all but if I were to guess I would go with reincarnation that he did cause for some reason he could not time travel or there were to many risks that come with it. I donât remember a character named ___ (forgot it) but she died due to some mistake he did or something and he could not accept it and tried everything he could to get her back. Maybe telling him right now might have him regain his memories in a way that is unnatural and cause him to try to do the same thing he once did if he finds out that even with all he did he still failed.