Orion'S Board summary: Losing one match after another, shogi prodigy Yuuhi Ninomiya became a shadow of his former glorious self. It was then that he faced his old rival Kanata Kuji in an official match. However, the record-setting match ended with Kanata winning his 27th consecutive game, and Yuuhi losing his 17th consecutive game. Feeling frustrated and depressed, Yuuhi stops by a bar, when he has a fateful encounter with a certain girl! Her name is Tsuki Kayamori. Although she is overbearing, self-centered, and eccentric, her sharp and unorthodox playstyle is as if she was chosen by the shogi God!