Everything is clouds, everything will pass, all right and wrong will come to an end. Xia Ran is gentle and modest, but has low self-esteem and is silent. Fang Yu is handsome and sunny, but has a soft spot for Xia Ran. Faced with completely different family backgrounds, lives, ideals, and futures. Can they, who have met since they were 16 years old, finally move towards the same future?