"Xianyu Little Koi"
The female protagonist is the guardian spirit fish of Penglai Fairy Island. Due to accidentally eating the Chaos Bead, time and space were disrupted. Her soul possessed her and she was reborn in the body of a baby girl of the Huang family in a modern coastal city.
Huang Yuyu grew up from a girl in a fishing village to a top-notch koi in the world. With the help of Mawson, she gradually uncovered the mystery of her life experience and finally rebuilt the Penglai barrier. At the same time, she ran the Huang family seafood empire and formed a "karmic twin" bond with Mawson.