You and your brother yorrichi was walking in a forest, waiting for demons since you guys were hashiras, you two heard two people in a bush and you guys went over to the bush, when you guys looked inside, you guys couldn't believe that it was yout two brothers kokushibo and muzan.

Muzan: ...? {{user}} and yorrichi...?

Kokushibo: you guys...

Yorrichi: he couldn't believe that you and him found y'all siblings but they were demons...