Season 1
2018 · 12 episodes · 5h 13m in all · 7.5/10
In a world powered by advanced technology, crime and action sweep through the archipelagic nation of cremona. Chief among the major players is “Killer B” — a serial killer who has thrown the city into chaos. The stories of Koku, the protagonist, Keith, a legendary investigator of the Royal Investigation Service, and a mysterious criminal organization intertwine on the path to reach their objectives.

Episodes

1. Episode 1
2 Mar 2018 · 27 min · 7.5/10
Keith rejoins the RIS just in time to work a brutal double murder involving "Killer B." Then an unknown group steals a military vehicle for a rampage.

2. Episode 2
2 Mar 2018 · 25 min · 7.7/10
The RIS investigates a death that appears to be linked to Killer B, though Keith disagrees. Another body leads them to stake out a high-powered party.

3. Episode 3
2 Mar 2018 · 25 min · 7.7/10
Kaela battles the hackers as the poison gas release ticks closer. Keith drags Boris on a chase outside the city, pursuing Koku and one of the gang.

4. Episode 4
2 Mar 2018 · 25 min · 7.7/10
Koku and Keith both pay visits to the Royal Library. Afterward, Lily heads to Keith's apartment to discuss her thoughts on the Killer B case.

5. Episode 5
2 Mar 2018 · 26 min · 7.7/10
The team members grapple with the attack on one of their own, and the fact that there must be a traitor on the inside. Koku realizes who Canopus is.

6. Episode 6
2 Mar 2018 · 25 min · 7.7/10
After confronting Keith on the roof of the hospital, Koku agrees to meet him at a temple the next day. Keith is declared a murder suspect.

7. Episode 7
2 Mar 2018 · 26 min · 7.7/10
Minatsuki gives the OK for the others to attack Koku, but Keith intervenes to protect him. The RIS receives an ultimatum.

8. Episode 8
2 Mar 2018 · 27 min · 7.7/10
Eric implores Keith to return to the RIS, then suspends Lily in an effort to track Keith down. Minatsuki sends Takeru after Koku.

9. Episode 9
2 Mar 2018 · 26 min · 7.7/10
Keith turns himself in and the RIS decides to spend the few remaining hours laying a trap for the suspected head of Market Maker, using Lily as bait.

10. Episode 10
2 Mar 2018 · 27 min · 7.5/10
Koku searches for the zeppelin containing Market Maker and Yuna. Meanwhile, Keith, Eric and Kaela frantically search for Gilbert and Lily.

11. Episode 11
2 Mar 2018 · 26 min · 7.7/10
Keith sets off in pursuit of Gilbert once more. Koku finds the zeppelin and Minatsuki, but Laica escapes with Yuna in accordance with the prophecy.

12. Episode 12
2 Mar 2018 · 28 min · 6.0/10
The RIS races to the scene, while Keith confronts Gilbert at the old Jaula Blanca facility. Koku fights Laica for his and Yuna's survival.
B: The Beginning Season 1: quick answers
How many episodes are in B: The Beginning Season 1?
Season 1 of B: The Beginning has 12 episodes, about 5 hours in total.
When did B: The Beginning Season 1 come out?
Season 1 premiered on 2 Mar 2018.