The anime film 'Words Bubble Up Like Soda Pop' premiered in Japan, introducing the story to audiences.
Cherry and Smile meet for the first time at the summer festival when Cherry wins a karaoke contest and Smile recognizes her voice.
Cherry confides in Smile that she enjoys writing haikus, revealing a creative side she usually keeps private.
Inspired by Cherry's words, Smile composes a new song that expresses what he cannot say out loud.
The two attend the fireworks festival together, deepening their friendship and bond.
A misunderstanding causes Cherry and Smile to temporarily drift apart, testing their feelings for each other.
They promise to stay connected and continue supporting each other despite their upcoming changes in life.