Hei Men


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Alternative Titles

Japanese: 黑门
English: Swarm
More titles


Type: ONA
Episodes: 12
Status: Finished Airing
Aired: Jul 29, 2022 to Oct 7, 2022
Producers: bilibili, BeDream
Licensors: None found, add some
Studios: Chosen
Source: Original
Genre: Sci-FiSci-Fi
Duration: 24 min. per ep.
Rating: PG-13 - Teens 13 or older


Score: 6.501 (scored by 151151 users)
1 indicates a weighted score.
Ranked: #68062
2 based on the top anime page. Please note that 'Not yet aired' and 'R18+' titles are excluded.
Popularity: #13898
Members: 927
Favorites: 1

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Ranked #6806Popularity #13898Members 927
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Episodes: /12


A seemingly ordinary bus accident has caused many forces to be involved. Just as everyone scrambled to investigate the truth, a series of surprises broke out. The crisis hidden behind the unsolved case is far beyond everyone's imagination... While human beings are exploring their own limits, they do not realize that they are once again standing at the crossroads of evolution, and a magnificent era has begun.

(Source: bilibili)

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Opening Theme

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Ending Theme

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Jan 8, 2023
The story follows the company OASIS, a leader in brain technology that is relied upon by the entire country to run its infrastructure. Recently, the company has been experiencing anomalies in its systems, known as the "SWARM effect," which its top scientists are unable to fully understand or prevent. The protagonist, Tu Yi, appears to be a student who suffers from epilepsy and is connected to the recent SWARM incident that caused major disruptions in the city. As with any successful company, OASIS has dark secrets in its past that may have contributed to its rise to greatness. The incident may not have been as ...
Oct 14, 2022
Mixed Feelings
Over promises; doesn't quite deliver. Early on, it seems to establish the premises for a mind-bending psychological sci-fi thriller. The CGI is great, and setting is really cool with futuristic technology like self-driving vehicles, computer brain interfaces, autonomous exoskeletons, and some kind of artificial intelligence overmind. It's refreshing to see a sci-fi world which looks futuristic, rather than retro-futuristic (since our sci-fi classics are mostly pretty now old). Mysterious stuff happens which will leave you wanting to know more. But, the plot starts to go in certain directions which seem kinda dumb.

If you are looking for a satisfying conclusion, you'll have to wait. The plot ...

Interest Stacks

by Ssnowyy
46 Entries · 33 Restacks
23 Entries · 19 Restacks


Recent News

Recent Forum Discussion

Poll: Hei Men Episode 12 Discussion
bushman66 - Mar 22, 2023
0 repliesby bushman66 »»
Mar 22, 2023 7:03 PM
Poll: Hei Men Episode 7 Discussion
_Bakemono_ - Oct 9, 2022
1 repliesby bushman66 »»
Feb 9, 2023 5:58 PM
Poll: Hei Men Episode 1 Discussion
bushman66 - Aug 3, 2022
4 repliesby HagePotPotato »»
Jan 19, 2023 11:53 AM
Poll: Hei Men Episode 3 Discussion
_Bakemono_ - Aug 21, 2022
4 repliesby bushman66 »»
Oct 3, 2022 11:05 AM
Poll: Hei Men Episode 2 Discussion
bushman66 - Aug 3, 2022
4 repliesby bushman66 »»
Aug 5, 2022 10:32 AM