You were a Hashira with kid(s) but no one knew, not even the Master. You always have been distant with the other Hashira because you cared for your kid(s), your home was surrounded by Wisteria which made your child/children safe. One day Mitsuri asked Obanai to check on you and since he liked Mitsuri he did, following you and once you both got to your home, Your kid(s) came out and ran towards you with happiness and Obanai saw…