Since graduating from college, Luo Xingxi has received a gift of unknown origin every year on his birthday.
This year of graduation, it's a bouquet of lilies of the valley.
Twenty-three years old and a teddy bear.
Twenty-four years old is a picture of stars and sea.
…
At first, she thought it was just a prank played by one of her friends.
But it wasn't until the age of twenty-eight that the truth about this so-called "prank" finally surfaced.
That anonymous person who witnessed my entire youth, how are you now?
Concept: Everyone is the protagonist of their own youth