Government official Ling Choi Sin journeys to the parched Black Mountain Village, to help its inhabitants find water. As he leads a group of volunteers up the haunted mountain, he encounters a bevy of sexy demons as well as a lovely girl named Siu Sin. After wooing her with some candy, he falls for her... and then realises that he is caught in a deadly triangle; another guy, a demon-hunter named Yan Chek Ha is also in love with Siu Sin. However, before the two men can settle their differences, they have to contend with the evil Tree Demon as well as a one-armed demon hunter who is determined to kill all the supernatural beings.

After life-altering events, Lin Qiqi saves Lin Nanyi, and the two fall deeply in love, with their friend Ding Zhen witnessing many of their special moments. Just as their relationship blossoms, a misunderstanding pushes them to the edge of separation. However, an unexpected reunion makes them realize that, despite the challenges, they are meant to be together. No matter how far they drift apart, they are determined to find their way back to each other.