Flying Fox of Snowy Mountain and Other Tales of the Flying Fox.
Here is the story in summary:
His actual name is 'Yim Kei'. As Bad Ass character in story, he put up a lot of super trouble to the other, killed the main character father 'Hu Yai Do' by poison. These why Yim Kei is hiding his actual name by monk costume and called himself as a monk Master 'Bo Shi' - which mean tree of treasure.
Because all his live fell in to treasure hunting. And he stolen a part of KungFu from 'Hu Fei' father.
Concept art attached.