While fishing along the Xunyang River, Jiang Fan, a local fisherman, rescues Shen Youran, a distressed heiress who is trying to drown herself. Switched at birth as a child, she has been driven out of her home after the fake heiress sows discord, leaving her with nowhere to go. She temporarily stays at Jiang's thatched cottage. Jiang Fan accepts a reward to help her find her birth family, uncover the truth behind the misunderstanding, and resolve a long-standing grudge between their two families. As they accompany each other through one challenge after another, affection blossoms between them. After weathering many twists and turns, they finally become a couple. What begins as a chance encounter while fishing by the river becomes a sweet romantic destiny.