Demon slayer!

the Hashira are all running to Kagaya’s house, following their crows when an explosion happens in the distance. They keep running and see Muzan, Lady Tamayo, and Gyomei there, Muzan trapped in spikes and Tamayo injecting him with the ani-Kibutsuji drug. They all charge to attack him, but they fall into the infinity castle, and end up getting separated. Muichiro falls into Kokushibo’s area and is scared for his life because of how strong the demon is, but starts fighting, soon being joined