A 10 episode special teaching each piece of shogi.

Rei Kiriyama is a child prodigy. Rei Kiriyama is also an orphan who lives alone in an empty apartment. Rei Kiriyama is a teen working in an adult's world. Life is complicated for Rei. He's an up-and-coming shogi player on the verge of turning pro, but he has no homelife, or much of a life period,outside his board game, but thankfully with the help of some life-long friends he has an opportunity start all over again.
 
(Source: DENPA)
 
Notes: 
- Winner of the Grand Prize at the 4th Manga Taishou Award in 2011. 
- Winner of the 35th Kodansha Manga Award in 2011. 
- Winner of the Grand Prize at the Tezuka Osamu Cultural Prize in 2014. 
- Winner of the Grand Prize at the Japan Media Arts Festival in 2021.

Rei Kiriyama is a 17 year old boy who recently started living alone, financed by his salary as a professional Shogi player. Despite his independence, however, he's yet to mature emotionally, and his problems continue to haunt him in his daily life. His relationship with his adoptive family is strained, and he has difficulties interacting with his fellow high school students. 
 
Meanwhile, his professional career in Shogi has entered a slump. Burdened with the heavy expectations placed upon him, his wins and losses are fluctuating as his record and progression into the ranks begin to stagnate. 
 
Acquainted with Rei are the three Kawamoto sisters: Akari, Hinata, and Momo. Unlike Rei, they live happily in their modest home, which they warmly welcome Rei into as if he were one of their own. He frequently visits the family, interacting with them and receiving the kind of care and affection he never quite had while under his foster home. 
This is the story of Rei's triumphs and failures, relationships new and old, and his growth as a person. 
 
(Source: TV Tropes)

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