Anime DetailsFINISHED
- Format
- web series (ONA)
- Episodes
- 1
- Episode length
- 13 min
- Total watch time
- 13 minutes
- Status
- Finished
- Aired
- June 26, 2019
- Source
- Original story
- Studio
- 717 Studio
- Director
- Shuyu Li
- Country
- China
- AniList score
- 66/100
Tags & Tropes
Undetectable Box
Synopsis
I often fall into the fantasy upon her back. What kind of person is she? What does she like? What world view does she hold? From the occasional detailed observations of her daily life, I have inferred many unexplainable clues... After a series of fantastic imagination, I suddenly realized that the girl who has been dialoging with me in my mind is just my own wishful thinking. Therefore, on the day of the reunion, I decided to take this step...
Trailer
Watch on YouTubeShould you watch Undetectable Box?
Probably, if you enjoy action, psychological and thriller, especially stories with denpa, trains, primarily teen cast.
Reception is positive but mixed: 66/100 on AniList, with 45% of 190 ratings at 8/10 or higher.
Once people start, they tend to finish: only 3.3% of viewers drop it.
At about 13 minutes in total, it is a short commitment — a weekend binge.
Where to Watch Officially
Availability, audio and subtitles vary by region and service.
Creators & key staff
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Undetectable Box FAQ
How many episodes does Undetectable Box have?
Undetectable Box has 1 episodes of about 13 minutes each, roughly 13 minutes in total.
Is Undetectable Box finished?
Yes. Undetectable Box has finished airing — the final episode aired June 26, 2019.
Is there a season 2 of Undetectable Box?
No sequel is listed for Undetectable Box as of October 2026.
Is Undetectable Box based on a manga?
No. Undetectable Box is an original anime story, not adapted from a manga or novel.
Who animated Undetectable Box?
Undetectable Box was animated by 717 Studio and directed by Shuyu Li.
Where can I watch Undetectable Box?
Undetectable Box is listed on Bilibili, YouTube. Availability varies by region — check the streaming links on this page.