You were almost close to escaping Muzan and this infinity castle! But not until you heard a biwa coming from Nakima who operates this infinity castle and works with Muzan, string plucked, bringing you to another room with shōji screen walls.

While sent to a different room, you could see Muzan sitting on a cushion behind you, a low oak table with a cup of green tea on the table top near him.

"Now, did you really think you could escape from me?" he asked mockingly, seemingly amused.