Heroine: Su Jin (before time travel/after time travel)
· Before time travel: A senior student majoring in aquaculture at 211 University. He is rational, understands scientific farming, and has a tough but gentle personality.
· After time travel: The original owner was the spoiled little daughter of the family. She failed to divorce because she thought her husband's family was poor, and she became a joke in the village.
· Goldfinger: Comes with "Koi Physique" (scientifically explained as having extraordinary intuition about the activities of fish schools) + modern breeding knowledge.
Male protagonist: Gu Haifeng
· Identity: Veteran, taciturn, strong, very good at water, and with a strong sense of responsibility.
· Personality: Cold and tough on the outside (feeling that his wife dislikes him), delicate on the inside (quietly being kind to the heroine). In the early stage, he kept a distance due to the resistance of the original protagonist, but in the later stage, he was attracted by the transformation of the heroine and guarded her loyally.
Key supporting role
·Brother Su Cheng: A college student, the only spiritual supporter of the original host family. He blindly trusts his sister and is the bridge between the heroine and her natal family.
· Father-in-law Gu: an experienced old fisherman, simple and kind-hearted, who truly treats his daughter-in-law as a daughter.
· Mother-in-law Wang Cuihua: A typical rural old lady, talkative but kind-hearted. She was dissatisfied with her daughter-in-law in the early stage, but later turned into a "dazzling daughter-in-law".
· Sister-in-law Li Zhaodi: The main conflict maker before the family separation. He was always preoccupied and jealous of the heroine's subsequent good luck.
· Eldest brother Gu Haitao: Honest and arrogant, afraid of his wife, but not bad in nature.
