Having both become a professional shougi player and lost his family in an accident at a young age, at 17 Rei Kiriyama finds himself adrift in life. A situation which slowly starts to change through his interactions with the three Kawamoto sisters.
A character drama with a central shougi theme, moderate number of slice of life and school life segments, a few romance elements, and a large amount of comic relief in the form of exaggerated character behavior.
More Information:
aniDB (1, 2)
Crunchyroll
Fansub.co
Wikipedia