According to "Kyuso Shosetsu," people at the Tsuchiya residence thought that Ako Roshi failed to catch Kira judging from their voice looking for him, since nothing was visible from their side.
『鳩巣小説』によると声だけしか聞こえない土屋邸では赤穂浪士たちが吉良を探している間の声を聞いて取り逃がしたのだろうと思っていた。