No one knows what their future self will be like.
But three years ago, Ruan Yunxin gave up on Qi Cheng because of her future self.
After three years of farewell and three years of meeting again, Ruan Yunxin now knows the future self of that year, but does not know the current Qi Cheng.
As the two come into contact again, why is it possible for the two who should have gone astray to continue dating? Is the Qi Cheng of today still the Qi Cheng of the past? What is hidden behind his pursuit of himself again? Is it a journey through the sea, or does it have other intentions? While doubting Qi Cheng, Ruan Yunxin also began to rethink her choices back then...
This journey of ups and downs, although long, has finally yielded results.