A water cultivator from another world traveled to modern times and became a marine biologist. She can control water powers, communicate with marine creatures, and protect the marine environment. She heals injured marine life, cleans up marine garbage, prevents illegal fishing, and has made great contributions to the marine ecological environment. However, some criminals want to use her abilities to plunder marine resources, and evil organizations also want to capture her for research. She led the marine life to rise up to resist and protect the ocean with water-based abilities. In the end, she became the guardian of the ocean and found her own value in the city!