Thank you for letting me meet love, and thank you for letting me meet a better self. On the ancient streets of Rome, the ordinary Huang Manman (Huang Yao) unexpectedly met her idol Peng Boyang (Liu Xun), who was completely different from her. The two people who had no intersection staged a romantic and surprising love journey in Rome, and the whole city was full of the taste of love. But things did not develop as well as they imagined, and real life brought the two back to the starting point. As time goes by, do they still remember the promises they made to each other on the streets of Rome that day?