Rei Kiriyama becomes a professional shogi player at a young age, setting the foundation for the series.
After the death of his father and familial difficulties, Rei moves in with the Kawamoto sisters, who become his surrogate family.
Through interactions with the Kawamoto sisters and friends, Rei starts to overcome his isolation and emotional struggles.
Rei competes in an important shogi tournament, reflecting his growth as a player and person.
Rei experiences tension and conflict with his mentor, which challenges his perspective and growth.
Rei helps the three Kawamoto sisters through their personal struggles, strengthening their bond.
Rei faces difficult truths about his family and reconciles with his past.
Rei achieves significant advancements in his shogi career, marking his professional development.
