B: The Beginning

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Alternative Titles

Japanese: B: The Beginning
English: B: The Beginning
More titles


Type: ONA
Episodes: 12
Status: Finished Airing
Aired: Mar 2, 2018
Producers: Netflix
Licensors: None found, add some
Studios: Production I.G
Source: Original
Genres: ActionAction, MysteryMystery, SupernaturalSupernatural, SuspenseSuspense
Themes: DetectiveDetective, PsychologicalPsychological
Duration: 23 min. per ep.
Rating: R - 17+ (violence & profanity)


Score: 7.161 (scored by 176715176,715 users)
1 indicates a weighted score.
Ranked: #34172
2 based on the top anime page. Please note that 'Not yet aired' and 'R18+' titles are excluded.
Popularity: #681
Members: 348,413
Favorites: 1,406

Available At


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Ranked #3417Popularity #681Members 348,413
Add to My List
Episodes: /12


On the islands of Cremona, a vigilante runs amok. Celebrated by some and hunted by others, the notorious "Killer B" takes justice into his own hands, armed with a sharp blade and superhuman abilities. Unable to apprehend this renegade, the Royal Investigation Service (RIS) calls upon the expertise of Keith Flick, a seasoned, yet eccentric detective who was relegated to the Archives Department following a personal loss. As crimes in Cremona begin to escalate, from stealthy executions of wrongdoers to sophisticated strikes on public figures, it soon becomes clear that there is more than one person responsible.

With the help of his impulsive sidekick Lily Hoshina, and unexpected aid from the elusive Killer B himself, Keith begins to unravel plots involving secret organizations, domestic terrorism, and human experiments. When the involvement of the RIS extends beyond the scope of justice, the extent of the government's corruption—as well as the trustworthiness of close allies—are thrown into question.

[Written by MAL Rewrite]

Characters & Voice Actors

Kazama Flick, Keith

Hirata, Hiroaki


Kaji, Yuuki

Hoshina, Lily

Seto, Asami


Saiga, Mitsuki


Satou, Satomi

Ross, Gilbert

Morikawa, Toshiyuki

Yoshinaga, Kaela

Koshimizu, Ami


Ishikawa, Kaito


Terashima, Takuma


Kitada, Yuu


Kuroki, Rui
Yagi, Masako
Producer, Production Manager
Nakazawa, Kazuto
Director, Episode Director, Storyboard, Chief Animation Director, Key Animation, Original Creator, Character Design, Animation Director
Yamakawa, Yoshiki
Director, Episode Director, Storyboard, Key Animation, Animation Director


Opening Theme

Apple Music
Amazon Music
Youtube Music
No opening themes have been added to this title. Help improve our database by adding an opening theme here.

Ending Theme

"The Perfect World" by Marty Friedman feat. Jean-Ken Johnny, KenKen


Apr 7, 2024
The story is unique; the main plot of this anime is love. Perfectly executed by the author, the plot, and the character, but the thing is, overall, it is a good show, but it lacks a description of some important elements (like how he got on the journey where he lives now; the villain will be introduced and have an unknown background), which makes it difficult for the viewer.

Story (7/10): unique surroundings and elements, like revenge, romance.
Character (7/10): surroundings character is like more dominant then the main protagonist and way cooler.

Artwork (7/10): well enough.
Voice-over (7/10): well enough.

Enjoyment: I enjoyed it, of the good show.
Apr 14, 2023
Mixed Feelings
I decided to write this review in 'mixed feeling', since I know somebody may like or don't like this anime. Somes may think it's not unique or boring someway, or may have nice plot and interesting.
While the anime' content not thrilled enough for me, its main plot + sub plot is great tbh, actually I love the plot twist. I was confused about the ending but then I realized that it also has season 2, so I am looking forward to it (a little bit tho) and hope that I could enjoy it more than the first season.
Overall, the character development is normal, animation + ...
Jan 16, 2023
[ The following review previously contained spoilers. They have since been edited out. ]
The following is an excerpt from the Deep Dive project:
- B: The Beginning
- Completed December 2019
- ONA, 12 episodes, dubbed, only watched season 1
- Not Recommended

Terrible name, seriously. This is a netflix ‘original’ funded anime, which should be an early warning sign of its quality.

This particular studio did a good job with animation and shot composition, but everything else is ametuer at best. The plot is one of those B-grade anime you dream up at 2am. Pun intended.

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Poll: B: The Beginning Episode 11 Discussion
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