※估算 根據卷數、再版次數、連載雜誌等推算的參考值(非實測)
作品概要
Consists of 4 one-shots. 4. Yakusoku ga Kimi wo Yaburu Aina and Tooru are childhood friends who made a promise to always be siblings. As the years past, Aina’s feeling for Tooru turned to love but Tooru became cold and distant. Will either of them be able to keep their promise?
來源: AniList
