Blue Box Season 2 Anime Details and Episodes The second season of Ao no Hako. Series info Watch free DetailsFormatTvStatusUpcomingSeasonFall 2026StudiosElectric CircusSourceMangaCountryJapan GenresRomanceSlice of LifeSports TagsPrimarily Teen CastHeterosexualIyashikeiSchoolMale ProtagonistComing of AgeBadmintonAcrobaticsShounenFemale Protagonist RelatedBlue Box (Source)Blue Box (Prequel) CharactersChinatsu KanoTaiki InomataKyou Kasahara (Supporting)Hina Chouno (Supporting)Kengo Haryuu (Supporting)