Ryuuou no Oshigoto!
Kuzuryuu Yaichi is the youngest shogi champion - Ryuuou (dragon`s king) - in history. And here is a girl - Hinazuru Ai, who asks to become his disciple. Too young for his title, Yaichi is going to revive his shogi through his passionate disciple... wait, Ai-chan is 9 y.o.? She is an elementary schoolgirl! And... is she going to live with Yaichi? All night until morning? What?