Chu Qiao is a rising elite in the banking industry, and she is also an older leftover woman, with many rich and handsome men around her; A Kang is a fish tank seller and a small fish owner in the flower, bird, insect and fish market; the two were childhood sweethearts and fell in love deeply, but decided to break up because A Kang did not go to college. Ten years later, Rongrong bought a fish tank with her boyfriend. They met unexpectedly again, but at this time A'kang was already preparing for the wedding, and his fiancée was a wealthy lady. Rongrong wanted to express her love again, but was deterred by the other party's finances. A'kang wanted to have her again, but felt that the two were already worlds apart.