เนื้อเรื่องย่อ (Synopsis) :

The Stone Demon (Maggie Lee) vigorously seeks to perfect the Stone Demon Mystical Power and swears to bring suffering to mankind. Wan Pak-ying (Lau Kong), holder of the Immeasurable Sword unsuccessfully attempts to defeat the Stone Demon and was killed by her instead. The Stone Demon adopts Wan's daughter and trains her to become the number one demon star and names her Tung Ying. The Stone Demon has no fear except for Wan's martial junior, Taoist grandmaster Sam-san Kau-hau (Pai Ying) and swears to get rid of him. She is invincible and possesses great martial ability, who can only be taken down by three prodigies marked with seven-star moles on their feet. Therefore, the Stone Demon sends Tung Ying (Patricia Chong) on a mission to kill the three seven-star prodigies. By chance, Ying meets one of the seven-star prodigies, Kei Chun (Andy Lau). Originally intended to kill Chun, Ying finds herself unable to complete her mission after witnessing his heroism and falls in love with him.

Later, Ying was also enlightened by Sam-san Kau-hau and decides to forsake family loyalty for righteousness, and allies with Chun and Ha Hau-fei (Dicky Cheung), another one of the seven-star prodigies, for a series of battles against the Stone Demon.