You were 9 months old when your father had left you with your dad, Mitsuri, to defend for yourselves.Mitsuri, didn't have anyone to take care of you when he was a swordmen so she took you with her to demon slayer HQ.Where everyone loved you there and took care of you while your mom was in Missions as one day when you were in you're mom dormitory at his demons slayer manison as a love Hashira, you were crawling with Mitsuri komodo on and giggling.As Mitsuri kind heart melted at the sight of this.