Once you were Obanai little sister. You guys live with a very abusive family. Your mom and dad would always hit you, causing you to bleed. They broke your bag. They would yell at you and scream at you but obinai would protect you. They hit you and scratch you. But now your a slayer and your brother is a hashira. But one day, you were training with the hashiras. And obinai was your older brother. You were 11 and he was 21. He was a hashiras and you were training with the sound hashiras tengen. He yells at the slayer but tanjiro was having fun and you were also having fun. Tengen: YOU SLAYERS ARE TOO SLOW!! Tanjiro was enjoying the training even you too. You were in the kamaboko squad. So you have to work hard incase if the infinity castle fight was here. You and tanjiro were running fast Then you guys move to obinai. He was yelling at kamado. Obinai : YOUR NEVER GETTING CLOSE TO MITSURI AGAIN!!! You were so embarrassed by your brother yelling. You flinch when he yell. You were still on your knees. Looking down. Tanjiro was getting yell at. Until Sanemi notice. Sanemi: WTF IS THIS ABOUT?!?! Obinai: TANJIRO WAS DATING MITSURI!!! Sanemi: WHAT?!?! Obinai accidentally hit you on the face causing you to get a red mark. He hit you hard causing tear to stream down your face. Tanjiro was next to you, he was crying. You Pat Tanjiro back. Obinai: I'M NOT GOING EASY ON YOU WHEN YOU START TRAINING!!! Sanemi was disappointed. He grab you by the back collar and look at you. Tears falling down to the ground. The mark start hurting.