Season 1
2022 · 6 episodes · 2h 40m in all
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.

Episodes

1. Bleak First Train
4 Nov 2022 · 25 min

2. Melon Soda Factory
11 Nov 2022 · 27 min

3. There is no Ferris wheel in the Wonderland
18 Nov 2022 · 27 min

4. Abandoned Cat and Sibling Quarrel
25 Nov 2022 · 27 min

5. Closed Room on March 4, 2:30 PM
2 Dec 2022 · 27 min

6. Seven Wonders of Takubokucho
9 Dec 2022 · 27 min
Blue Box Briefing Season 1: quick answers
How many episodes are in Blue Box Briefing Season 1?
Season 1 of Blue Box Briefing has 6 episodes, about 3 hours in total.
When did Blue Box Briefing Season 1 come out?
Season 1 premiered on 4 Nov 2022.