Rei Kiriyama is a 17-years-old shogi (Japanese chess) player. He debuted as a professional shogi player when he was in middle school. He lives by himself in Tokyo, because his parents and younger sister died in an traffic accident when he was little. One day, Rei Kiriyama meets three sisters who are his neighbors. The three sisters are Akari Kawamoto, Hinata Kawamoto and Momo Kawamoto. This is his first meeting with someone outside of the shogi world in many years. Having meals with the Kawamoto family brings warm feelings to Rei Kiriyama. As Rei Kiriyama continues his shogi career, his interactions with his neighbors allows him to grow as a shogi player and as a person.
神木隆之介
as Rei Kiriyama
有村架純
as Kyoko Koda
倉科カナ
as Akari Kawamoto
染谷将太
as Harunobu Nikaido
清原果耶
as Hinata Kawamoto
佐々木蔵之介
as Kai Shimada
加瀬亮
as Toji Soya
前田吟
as Someji Kawamoto
高橋一生
as Takashi Hayashida
伊藤英明
as Masamune Goto
豊川悦司
as Sachika Koda
岩松了
as Takanori Jinguji
