Yokotani, bound by obligations to honour his ex-wife Kaoru's passing before he can begin life anew. Completely incompatible, Yokotani and Kaoru's daughter must change completely to create a new family while performing Kaoru's funeral.

In a coastal town attracting artists, 14-year-old Sosuke and his friends stay busy painting and helping with school projects. As carefree children interact with secret-laden adults, the sunlit ocean reflects their contrasting struggles—kids embracing challenges while adults seek elusive answers.