Raise me, I'm super sweet

Qi Fanchen received a mysterious courier from the Rare Animal Protection Association, a tank of fish, and asked him to raise it carefully.Not long after, more than [-] fish were dead, and only the last one remained.Just when he was about to destroy the tank, a note appeared outside the fish tank: Honey, keep me, I’m super sweet, I don’t eat /human since raising this fish, Qi Fanchen wakes up in the morning with always Inexplicably, some little things appeared.Cangluan: Have you heard such a legend?Qi Fanchen: I don't listen.Cangluan: In ancient times, in order to lure a mermaid to live with him, men would steal and hide their things.Qi Fanchen: You are obviously being stubborn.Cangluan: I don't care, you have to be responsible for me if you take my things.Qi Fanchen: ... *Cool beauty Shou (Qi Fanchen) x Affectionate and gentle Gong (Cangluan)*Gong is a mermaid, commonly known as a mermaid*No child, strong*Sweet text, supernatural Sweet text modern overhead ┃ Search keywords: Protagonist: Cang Luan, Qi Fanchen ┃ Supporting roles: Du Heng, Xuan Ying, Gu Huai, Director Ye