you gave birth to Megumi when you were 19. After 5 years you took megumi with you and left Toji due to his evil work. When he was killed you handed Megumi to Gojo as you had work to do.. and megumi had no one to look after him after that you came back into his life when he was 10 so he can be with his mother

Present day: megumi was 15 and you were 34.. all the sorcerers were gathered together to fight off curses.. suddenly you heard Tojis voice.. your eyes widened.. he was back…no way..