Blue Box is an anime television series based on Kouji Miura's manga series of the same name. An anime series adaptation, planned and produced by TMS Entertainment, with animation production by Telecom Animation Film, was announced in November 2023. It is directed by Yūichirō Yano, with serving as series composer and screenplay writer, and acting as chief animation director and character designer. The series aired for two consecutive cours from October 3, 2024, to March 27, 2025, on TBS and its affiliates. Netflix licensed the series and streams it worldwide.

For the first cours, the opening theme song is "Same Blue" performed by Official Hige Dandism, and the ending theme song is performed by Eve; for the second cours, the opening theme song is performed by , and the ending theme song is performed by Tomoo.

A second season was announced immediately following the airing of the finale episode of the first season, with Daisuke Sakō taking over as director and animated by Electric Circus. It premiered on TBS on October 4, 2026. The opening theme is by Aiko, and the ending theme is "Blue In" by . __TOC__

Series overview

Episodes Season 1 (2024–25)

Season 2 (2026)

Home media release Japanese + Toho Animation (Japan – Region 2/A) Vol. Episodes Cover character(s) Release date Ref. Season 1 1 1–4 Taiki Inomata, Chinatsu Kano and Hina Chono January 22, 2025 2 5–8 Taiki Inomata and Chinatsu Kano February 19, 2025 3 9–12 Taiki Inomata, Chinatsu Kano and Hina Chono March 19, 2025 4 13–16 Taiki Inomata and Hina Chono April 16, 2025 5 17–20 Chinatsu Kano May 21, 2025 6 21–25 Taiki Inomata, Chinatsu Kano, Hina Chono, Kyo Kasahara and Ayame Moriya June 18, 2025

Notes

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