Anime
Blue Box Season 2: aiko sings opening, new PV is out
The ending "blue in" comes from Elsewhere Kikou, and the new season starts on October 4, 2026 in Japan.

Blue Box Season 2 premieres in Japan on October 4, 2026 and gets new theme songs from aiko and Elsewhere Kikou. As Anime!Anime! reports, the opening is called "Anata no Hana no Iro," while Elsewhere Kikou provides the ending with "blue in." At the same time, a new main visual and a main PV were released.
The new PV features Taiki Inomata and Chinatsu Kano as well as the new character Yumeka Kido, and once again focuses on the changing relationships between the characters. The video is also embedded on the series' official website.
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New Songs for Season 2
aiko describes "Anata no Hana no Iro" as a song in which her present and past perspectives on school days meet. Elsewhere Kikou was already heard in Season 1: singer and guitarist Sou Anno contributed the insert song "Koiiro" for episode 24. With "blue in," the duo now writes an ending for Blue Box for the first time.
Season 2 is animated by Electric Circus. Daisuke Sakou directs, series composition remains with Yuko Kakihara, and character design is by Miho Tanino. The Japanese broadcast begins on October 4 at 4 p.m. on the TBS network. According to the official website, streaming releases will follow on several platforms, including Netflix, Disney+, Prime Video and U-NEXT; the sources read do not contain a separate confirmation of availability in Germany.
Blue Box is based on the manga by Kouji Miura, which ran in Weekly Shonen Jump from April 2021 to July 2026. The first anime season aired from October 2024 to March 2025. Other continuations in fall 2026 include Tokyo Revengers with the Three Deities arc and ReZero Season 4 with the Reclaiming arc.