Words Bubble Up Like Soda Pop is a slice-of-life romantic comedy film directed by Kyōhei Ishiguro. Set in a rural part of Japan with a large shopping mall, the film follows two people who have trouble communicating with others. Yui "Cherry" Sakura is a shy boy who can only speak through his writing of haikus. Yuki aka "Smile", covers her mouth with a mask to hide her braces that try to fix her buckteeth birth defect and is an online influencer. A fateful meeting at the mall starts a romance between them.