From a remote town to a coastal town, fifteen-year-old Jiang Yu carried his old suitcase and opened the door called "home".
Under the roof of a foreign land, an unrelated boy and girl grew up dependent on each other.
It is the mutual protection under the eaves of a foreign land, the care that is not related by blood but is better than a close relative, and the lonely planet that has been wandering for a long time and finally found its own light.
Concept: He is the driftwood, she is the only shore