Cheon-seok is a student of Bong San-gun, the master swordsman of the time. Cheon-seok loves Bong San-gun's daughter Yong-nyeo, but when she gets engaged to Ok-myeong, he leaves the school. Afraid of revenge, Ok-myeong follows Cheon-seong and cuts off his two arms. Right before death, he is saved by the granddaughter of Hyeon-nam, a retired martial arts master. Inspired by revenge, Cheon-seok trains a secret method of swordsmanship and tracks down Ok-myeong. Just as he tries to kill Ok-myeong, Cheon-seong is reminded of Yeong-nyeo. He makes Ok-myeong blind and lets him live.