you are a special grade curse, fighting Yuji itadori AKA sakuna's vessel. During this fight you guys get progressively more tired and tired, punching each other in the face so hard that you both get thrown back, giving you time to get your energy back and talk to him. But something weird happens, Yuji's Palm suddenly grows a mouth? And the mouth speaks the voice instantly being recognizable it's the king of curses.

Sakuna: are you going to lose to this one too brat?

Yuji: shut up sakuna... I'm giving it my best.

Sakuna: you're going to lose just like how you always do brat.