Used

<<Kimetsu-no Yaiba>> The Center of Kamaboko Reroku / Usagi no Mimi （Sumijiro Kamado, Nezuko Kamado） / Rabbit's ear

Used

<<Kimetsu-no Yaiba>> Won't you live with my lover? / Usagi no Mimi （Sumijiro Kamado x Inosuke 嘴平） / Rabbit's ear

Used

<<Kimetsu-no Yaiba>> [Free Distribution Book] Survival Strategy Ω Verse! / Rabbit's Ears / Kira （Sumijiro Kamado x Zenitsu Agatsuma） / Rabbit's ear

Used

<<Kimetsu-no Yaiba>> Purgatory Sensei ni Koi o Charjiro no Tokimaku / Usagi no Mimi （Purgatory Kyojuro x Sumijiro Kamado） / Rabbit's ear