La sirena
美人鱼 (original)
Shan, a mermaid, is sent to assassinate Xuan, a developer who threatens the ecosystem of her race, but ends up falling in love with him instead.
Starring Lin Yun, Deng Chao, Kitty Zhang, Show Lo, Tsui Hark, Wen Zhang, Kris Wu, Lee Sheung-Ching, Lu Zhengyu, Chiu Chi-Ling
It's a fantasy and comedy movie, and has a rating of 6.2 out of 10 from Imdb which is usually fine for this kind of movie.
Watch it here
Not found streaming from India.