Kagami Chiyori was Kagami Taiga's little sister. She was sent by her parents together with her cousin, Asami to watch over her brother. She loves basketball since young. She's good at it despite her 'handicap' and hates it when someone underestimate her abilities. But what will happen if she meets the oh so famous/conceited ace of the generation of miracles? Who sure loves to tease her ? Will there be a chance that a love will bloom between her and the ace when their personalities are completely opposite to each other?