[A love story in three equal parts] Reborn and returned to the summer of 2010 when he graduated from high school at the age of 18, he obviously had many choices, but the stubborn Su Mo just wanted to follow the life trajectory of his previous life and reunite with his lover who had been in love for ten years ... However, compared with the familiar past, some subtle changes have taken place in this world ten years ago - not only her own appearance has become very popular, but even the one she likes seems to be divided into three parts. All the qualities in her, together with the memory, were equally distributed to three completely different girls... When they appeared in Su Mo's life one by one, how should he continue to write yesterday's love song?