Sinopse: Natsumi just lost her younger sister, Haru, to cancer. As her sister\'s coffin finally closes for the last time she whispers \"Wait for me until I join you,\" but Haru\'s fiancé, Tougo has other plans which might mend both their hearts. *Ranked #2 in Kono Manga ga Sugoi! 2017 (Female Readers)* ---