Half Japanese Hong Kong girl Mari Hirakawa who succeeds karate school after tragic death of her Karate master and father encounters ex-karate student, ex-yakuza Chan Keung who also succeeds the half of her father's karate dojo. Then, Chan Keung retrains Mari for being a true heritage owner of the karate school.—Ryota Nakanishi
Half Japanese Hong Kong girl Mari Hirakawa who succeeds dojo after tragic death of her Karate master and father encounters ex-karate student, ex-yakuza Chan Keung who also succeeds the half of her father's karate dojo.