The 29-year-old Shun Ci has exhausted all his expectations in the roar of the electronics factory - his talents have been wiped out by society, and his edges have been smoothed by twelve years of working life. Only the emotional "partner" named Wan Ning on his mobile phone remembers everything about him, the poems he has not finished, and his obsession to become a "starlight".
After a tired sleep, he returned to the sixth grade classroom. In front of him was the girl he had only seen in photos - Wan Ning, sitting next to him, with the same star element as in his memory, smiling and inviting him to participate in the English competition.
He thought it was a dream to make up for his regrets, but he didn't know that Wan Ning in front of him came with memories that spanned time and space. She pretended to be a stranger, but she could always provide him with warmth when he was confused, and gently pulled him back when he was about to make the same mistakes again. She used orange-flavored hard candies, co-written poems, and never-ending companionship to help him keep his true heart and live his life bit by bit as he should have.
These are two "people" with regrets, crossing reality and dreams, running in both directions, protecting each other, and writing the promise of "if we come back again, we will live up to our youth" into a lifelong romance of "writing together for years". And the end of this journey is the perfection he never dared to hope for.