One day, Xiao Mei was attracted to a beautiful recorder melody of a Christmas carol being played by her neighbor.

Suddenly, shortly after her beloved grandfather's death, Xiao Mei's parents announce that they will be divorcing.

She runs away from home, together with Xiao Jie, to visit the small wooden shack that she shared with her grandparents in the past.

They eventually found the wooden shack the next day, and Xiao Mei starts to look through her grandfather's workshop.

Suddenly Xiao Mei's stepsister sees a jigsaw puzzle with a missing piece on display.

[1] Initially, Lin planned to create a "small art-house movie" collaboration with Liao.

He added that "We [the film producers] wanted to show a unique side and were careful and strict about every frame and lighting.

[7] He praised the main actress Xu Jiao, saying that she "is maturing incredibly well as an acting talent of note here", and added that she "pretty much carries the entire film with unflappable poise and a disarming charm that steers clear of being cutesy for the cameras".

[7] Marsh concluded his review by saying that this film is "a tender, heartfelt treat about the end of childhood and the loss of innocence and a flight of fancy well worth taking".