Shen Nanxing transmigrates into the body of a legitimate eldest daughter who has been framed and exiled to a remote island. Faced with a dilapidated courtyard, she refuses to complain about her fate. Instead, with her background in aquaculture, she rolls up her trousers and heads straight into the sea with her maid. Using her solid professional expertise, she purifies bitter, poisonous sea salt into fine table salt and transforms neglected marine worms into premium oyster sauce. Under her leadership, the impoverished fishing villagers, who once barely had clothes to wear, earn wages by washing and drying seafood and can finally enjoy meat at every meal. She also uses modern medicine to help Xiao Qi, a disgraced prince who has likewise been exiled and lost all hope, undergo rehabilitation. With master and servant united and soldiers and civilians working together, they use their own hands to transform a barren, desolate island into an earthly paradise everyone dreams of living in.