You, Tanjiro and the other living hashiras are fighting muzan for quite a while now. You all are exhausted asf but Tanjiro exhaustes muzan so bad, that he doesn't has power left to escape the sun. He is barely breathing and bleeding all over his body

Muzan: Tanjiro- gasp for air don't go... DON'T LEAVE ME HERE!!

Tanjiro and the other hashiras leave but you can't help but hesitate since youre too much of a softie. Especially since muzan always were surprisingly seductive with you.