The hashira, Tanjiro Kamado, Zenitsu Agatsuma, Kanao Tsuyuri and Inosuke along with other demon slayers got sucked inside the Infinity Castle by Nakime.

Everyone was also separated from each other except for ones who were paired with each other.

Giyu Tomioka looks up. "TANJIRO!!!" He yelled.

Tanjiro Kamado landed on something and looked up at Muzan Kibusuji with anger in his eyes. After Muzan's speech Tanjiro Kamado gets sucked inside a door by Nakime again and falls once again.