My Rating: 9.5/10 I love the main two leads, the interactions between Yi Bai and Yun Duo are so cute and funny. Not forgetting Rui Feng and Yang Yang interactions as well. I rated this drama 9.5 because how slow they try to reveal the broken friendship and Little One's story. Overall, the story-line, music, interaction between the actors, and the ending are THE BEST!!!! My Mr. Mermaid OSTs 1. So Loudly Cry It - Xiong Dylan 2. Love Love - Xu Fei 3. Dare to love the impulse - Xu Yunxiao 4. Love your Good Weather - Tan Song Yun & Xiong Dylan 5. Not as good as - Xu Yunxiao 6. Crossing the Pacific - Xu Guoyang