"When I grow up, I must be Brother A-yao's wife!" After a single childhood joke, Xu Yao hid for over a decade. With one phone call from mom, the once crybaby Luo Qingyue moved right in with her bags, her room sharing a wall with his bedroom. Ten years later, the former crybaby has grown up pure yet alluring, asking to be accompanied for school registration, insisting on holding hands in dark alleys, and aggressively chasing him with various clever moves. Xu Yao complains with his words and sets rules, but his heart has long thrown caution to the wind. Single female lead with non-stop sweetness! This long-planned pursuit by a childhood friend—how many episodes can he actually survive?