姜信哲馆长30年前在伊朗奠定了伊朗强劲的跆拳道实力，被视为伊朗的跆拳道英雄。他在伊朗培育了数千名的徒弟后，回到韩国的水原开设了南昌道馆，每年有超过1500名以上的外国人前来向他学习跆拳道。馆长28岁的女儿姜有珍，身高154公分，是扁平足，外型看起来像是名国中生。常对自己感到自责、生性害羞的她，即使脊椎和腰部疼痛不已，仍每天持之以恒地不断练习跆拳道，最后终于称霸世界大赛，成为韩国数一数二的跆拳道高手。思考着韩国跆拳道的根本与发展的姜信哲馆长，与个性坚忍不拔的女儿姜有珍，虽然他们深爱彼此，但在道馆中却常有所争执，严格的父亲对女儿的指导方式感到十分不解。为何他们会踏上跆拳道这条路，透过跆拳道所得到的究竟为何？为什么会有那么多外国人愿意花费时间与金钱专程到韩国向他们学习跆拳道呢？
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