At the local Oda Nouvelle Mall, Yui "Cherry" Sakura is working at an elderly care center for summer break.

Cherry is a quiet and reserved boy who prefers to write haikus to express his feelings but struggles with reciting them in front of an audience.

Amidst a chaotic chase between delinquent Beaver and the mall security, Cherry accidentally swaps phones with Smile, an online influencer who wears a face mask to hide her buckteeth.

Smile starts working at the elderly care center and helps in rehearsing the Daruma Folk Song for the upcoming summer festival at the mall.

On the day of the festival, Smile presents Fujiyama with a reassembled record as an apology and is shocked to find a working copy repurposed as a wall clock in the elderly care center.

As Cherry's family car drives past the mall, he sees his haiku written about Smile spray painted on the street signs by Beaver.

At the concert, it was also announced to be directed by Kyōhei Ishiguro, with animation production by Sublimation and Signal.MD, scripts by Dai Satō, character designs by Yukiko Aikei, and music by Kensuke Ushio.

[6] The film's main theme is "Cider no Yō ni Kotoba ga Wakiagaru" performed by Never Young Beach.