Kako is the #1 Takkoku player in Japan. She reunites with her childhood sweetheart, Marunouchi Gaku. However, before they can date, Gaku must defeat Kako in a game of Takkoku. The problem is, she doesn't know how to go easy. Until Gaku is able to defeat Kako in a game of Takkoku, she'll have to wait till his skills exceeds her own.