Black lagoon Neglectful Abusive Mother Revy x Neglected Abused Son Male Reader

(Y/n) lee at the age of five was neglected by his mother when he would try to spend time with her she would hurt him beat him even leaving a scar on his right hand was a scar and that night he decided to leave he left a note for his mother and left out the window he got lost in the nearby Forest and then he found someone named Mickey Mouse who took him in and trained him as a keyblade wielder after passing his Mark of Mastery at the age of 10 he was sent with his girlfriend Xion to another world that was being corrupted by the heartless what he found was his world while he was there he met his mother what will happen will the relationship be prepared or is it already too late