Back in High School

The film tells the story of Lan Feichi and Qi Shu, who fall in love during high school. After nine years apart, they reunite at Qi Shu's wedding, where Lan Feichi is struck by feelings of guilt and nostalgia. A chance encounter with a magic watch shop allows him to travel back to their high school days, armed with a pocket watch gifted by Qi Shu.

As Lan Feichi attempts to alter the course of their relationship, he realizes that his efforts often lead to unintended consequences. Each attempt to change the past results in outcomes that complicate rather than resolve his feelings. Ultimately, he faces the pivotal decision of whether to confront Qi Shu again or let their past remain unchanged. This narrative weaves together elements of fantasy with a poignant exploration of love and the impact of time on personal choices.