: This episode marks the proper debut of Zenitsu, whose cowardly and pessimistic demeanor has divided some fans. Reviewers from Wooderon noted that his constant "freak outs" were a jarring but notable addition to what had previously been a more serious show.
Bloggers and reviewers frequently focus on the following elements of episode 11: 11 : Tsuzumi Mansion
: Tanjiro and Zenitsu investigate a mansion deep in the woods after encountering two children whose brother was abducted. The house serves as a giant "puzzle box" controlled by the demon Kyogai, where rooms shift and flip with the sound of a tsuzumi drum. : This episode marks the proper debut of
: Toward the end of the episode, viewers are introduced to the boar-masked swordsman, Inosuke. His fearless and somewhat insane personality is often viewed as a perfect foil to Zenitsu's cowardice. The house serves as a giant "puzzle box"
: Some community reviews, like those at Star Crossed Anime , highlight the shift to an oppressive, tragic atmosphere within the house, which contrasts sharply with the earlier comedic scenes involving Zenitsu.
