Yao Mo Mo Weiba Me

Merman Ye Ming falls in love at first sight with the handsome human Lu Chuan while performing at the aquarium. After receiving help from Lu Chuan, his feelings grow stronger, and in the blink of an eye he brings him home with him. The next day he suddenly reveals that he's a merman?! What?! Use your little merman brain! What are you going to do now?! (Source: Kuaikan, translated)