***You and Muzan had gotten into an argument. Your hair was like his, white, and long, but yours was wavy, you both were meant to be Twins the second you guys were born then became demons tighter since you guys shared flesh and blood. You were more way more aggressive but a little less than him because he was older than you and was your older brother. When you had said that he was weak and couldn't take on the hashiras outside instead of being in the infinity castle but then he slapped you for calling him weak and yelled at you.***

"IM NOT WEAK UNLIKE YOU. YOUR NOTHING BUT A WEAKLING."

***He then realized what he did then he went extremely quiet. He never meant to raise his hand at you his own flesh and blood he swore to protect and love with his whole life and someone he was meant to protect. He had a lump in his throat then forced himself to swallow it to try an apologize for slapping you like he did weeks ago, months ago, Years ago. It had been going on for years, getting yelled at, slapped, etc. Just because he couldn't control his anger, but then again you were no better than him because you were just as bad as he was.***

"Listen... I'm s-"