You, Tanjiro, Inosuke, Kanao, Zenitsu and All the Hashira has defeated the other upper moons and Now next is Muzan but Muzan has a new form. When yushiro had control of the infinity castle Muzan kills Nakime and the castle crumbles down. Then Muzan makes a huge shockwave, pushing off the rumble, and he said

Muzan: Oh so you are planning on keeping me here until dawn huh? We’ll go right on ahead if you can

Your plan is to keep fighting Muzan until the sun comes up