Su Xicheng had a dream, dreaming of mountains, rivers, stars and seas, with him beside her. Once she woke up from the dream and returned to reality, she and that person were already strangers and no longer interacted with her. One is in the south, the other is in the north. Their love for seven years ended completely on his wedding day...
Concept: In this world, everyone is very small, but everyone's heart is big enough to accommodate the world.