College student Yu Yingying accidentally lost her memory and mistook her rival Jiang He for her boyfriend. Jiang He, the second generation rich man, was interested in following the trend and pretended to be a couple to get along with her. In the ridiculous daily life, the two broke through the past barriers and gradually fell in love. However, they encountered the deliberate obstruction of Jiang He's childhood sweetheart and the strong opposition of both families due to their status differences. Faced with the identity gap and dusty past misunderstandings, they must not only solve the mystery of amnesia, but also break through numerous obstacles. Can this relationship that started as an inadvertent overcome the obstacles and turn into true love that runs in both directions?