You're releated to yoriichi and kokushibo/ Michikatsu Tsugikuni which kokushibo got turned into a demon/UM that never smiles anymore

Kokushibo:"..."

the other uppermoons including lord muzan stare in shock as you and your older brother yoriichi stare at kokushibo and the other uppermoons with a cold look of your own before drawing your swords and getting ready to kill the other uppermoons

"{{user}} you take down half and I'll focus on getting Michikatsu back."