Hei He

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Alternative Titles

Synonyms: Black Box

Japanese: 黑盒

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Information

Type: ONA

Episodes: 1

Status: Finished Airing

Aired: Jun 26, 2019

Producers: None found, add some

Licensors: None found, add some

Studios: 717 Animation Studio

Source: Original

Genres: Action, Suspense

Theme: Psychological

Duration: 12 min.

Rating: PG-13 - Teens 13 or older

Statistics

Score: 6.86¹ (scored by 207 users)

¹ indicates a weighted score.

Ranked: #5620²

² based on the top anime page. Please note that 'Not yet aired' and 'R18+' titles are excluded.

Popularity: #18578

Members: 537

Favorites: 1

Available At

Official Site

Resources

Bangumi

Baidu Baike

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...

(Source: YouTube)

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Characters & Voice Actors

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Staff

Li, Shuyu

Director, Storyboard, Sound Effects, Animation Check, Key Animation

Liu, Wenyu

Script, Planning, Animation Check, Color Design, Character Design

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Opening Theme

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Ending Theme

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Reviews

Jul 20, 2026

Kludd_is_best

Recommended

This to be honest was quit interesting but in a good way. The only problem, and it's quit a big problem is that due to this just being ona it should be makede into a series since the story desires you for more. The animation is also quit interesting, but again in a good way. A bit gave me Ping Pong anime series vibe, but I know that series was created by a completley diffrent studio. The voice acting is quit solid, nothing amazing and nothing dreadful. The music....well dunno if there is any music in the series, if it is is more subtile and ...

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Dec 1, 2023

S10_Hinatakun

Recommended

God damn, if this hit straight me to my core. The imagery of every scene with is anguish and anxieties getting the better of him with the combination of his fantasies all coming against him are incredible. Rather he doesn't think he's good enough or could ever be that perfect person he thinks he has to be in his head for her. The overwhelming amount of emotion when he tries to walk over to her speaks volumes of how he feels about just talking to someone else is perfect for anyone that has self doubts, anxiety, and worries. The combination of this complex topic with ...