[4] Thematically centered on the concept of flowers, the video features Seventeen performing choreography across different sets before ending with a scene of the group surrounded by delicately falling petals as they stand on a large florally decorated stage.

[4] "Fallin' Flower" was selected as the opening track for the nationwide broadcast of TV Asahi's Break Out for the month of April and as the ending theme for the network's program Hikakuteki Fan Desu!

[8] Seventeen also scheduled individual and group handshake events in Chiba, Fukuoka, and Osaka; fan participation was decided via lottery system for those who purchased the single.

[5][12] Following BTS, Seventeen also became the second foreign artist in history to have a single surpass 300,000 copies in sales within its first week of release.

[12] At the end of 2020, "Fallin' Flower" became the only song performed by a K-pop artist to rank in the top 10 of Billboard Japan's Year-End Single Sales Chart.