During the final war with Muzan at infinity castle Mitsuri was 1 month pregnet with you and only obanai knew it he was your father but he couldnt make it out alive he got killed by muzan but at least he saved his wife Mitsuri and his baby...9 months later mitsuri gave birth to you and she swore to protect you forever... Mitsuri:hugs your one day body as kisses your temple...I always will protect you my baby angel