What do you want to do most among the azure blue? From scuba to freediving, from freediving to mermaid diving, knowing the ocean and yourself underwater through different ways. "Yulu" appeared to provide a more complete care for the little fish. Integrating the two completely different mermaid systems of MFI & SSI: safety as the core, coupled with continuous training to strengthen the mermaid’s various abilities, let me lead you who are full of fantasy about mermaids and curious about the sea into this blue. Maybe it won't be great at the beginning, but it will never become great without starting. You only live once, give yourself a chance. Hello, this is Lu Huang.