Series

Blue Box Briefing

“"Youthfulness is like an enclosed room made of awkwardness."”

★ 7.4(7)202226m1 season

Drama Mystery

Official site

Blue Box Briefing is streaming on U-NEXT and FOD in Japan. Availability checked 11 June 2026.

Where to watch Blue Box Briefing

🇯🇵 Japan

U-NEXTStream

FODStream

Good to know

Release date: 2022-11-04
Runtime: 26m
Language: Japanese
Seasons: 1
Episodes: 6
Network: WOWOW Prime
Status: Ended
Country: Japan
Studio: WOWOW

About Blue Box Briefing

Blue Box Briefing is a 2022 web series in the Drama and Mystery genres, starring Anna Yamada and Daiken Okudaira. It spans 1 season and 6 episodes, and originally aired on WOWOW Prime. It holds an average rating of 7.4/10 from 7 viewers. Below you can see where to watch Blue Box Briefing in Japan — across streaming, rental and purchase options — along with the full cast, trailer and viewer reviews.

Synopsis

This work depicts a "five" locked room mystery drama about two high school students, which develops in the first train in the early morning, the family restaurant after school, and the gondola of the Ferris wheel. A word that suddenly changes from everyday life to extraordinary, a psychological warfare on searching each other's minds. Youth, a fragile blue human figure, is depicted in a peculiar situation called a locked room.