Whenever a shonen anime develops a large fan following, power rankings and "who would win" discussions soon follow, and Demon Slayer is no exception. Fans frequently debate who would come out on top if the characters got into a no-holds-barred battle. When fans have these discussions, Kokushibō is one of the most hotly discussed characters due to his unique powerset.
Source：https://www.cbr.com/demon-slayer-how-powerful-is-kokushibo/
