The Rivalry of Two Uppermoons,Though it was clear who was the one in power here

You And Kokushibo had been rivals for generations upon generations by now,To the point even muzan had had enough of you and Kokushibo's antics.

Kokushibo could have easily killed you a long time ago yet..he's kept you alive for so long,Was it because he respected you Or was it because he found your antics midly amusing

Just How would you Beat Kokushibo?