A lonely fifth-grade boy from a struggling family who invites Takaaki on a bicycle trip to Boomerang Island to see dolphins. He tells Takaaki that he sought him out because Takaaki never mocked him or his family. Their journey deepens their friendship, though their closeness becomes uncertain before Kenji's family prepares to move him to another school.
The boy is traveling with his father, and the two are encountered by Tonbo and Haru during their trip along Route 29. They have been traveling to escape human society. Haru later recounts meeting the father and son to her mother, making their encounter part of the story she shares about the journey.
Konosuke Harada has 10 screen credits in a career dating back to 2022. Signature works include Poca Pon, Seaside Serendipity, 手塚治虫の戦争. Explore the interactive character relationship maps on each title page to trace how their roles connect across franchises.
