Tsuzumi Mansion

The Tsuzumi Mansion is the house where the demon Kyogai, a former Lower Rank Six of the Twelve Kizuki known as the Drum Demon, attacks and eats people who pass by while trying to win back his rank. Striking the tsuzumi drums embedded in his body turns the rooms of the house and changes his position in it. Other demons live there too, including the Tongue Demon, whom Zenitsu Agatsuma kills. After a hard battle Tanjiro Kamado kills Kyogai.