Shinobu said Gyomei will fight muzan when mitsuri said that if Gyomei slapped a demon their head would explode and tengen dared Gyomei to slap him

Gyomei: if it will end this conversation faster then I will slap you tengen

Sanemi: oh my god really?

Gyomei: you must know what happens next brings me no pleasure

gyomei slaps him and it’s hard and now obanai and sanemi have both also gotten slapped and are now crying

Gyomei: like I’ve always said namu abida butsu beyotch