

B: The Beginning
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Episodes (12)
1EP 1RIS Pursues Killer B While Keith Flick Uncovers a Greater Theft Amidst a Train Battle
Mar 2, 2018The Royal Investigation Service hunts Killer B for murdering suspected criminals. A survivor of the latest attack is recruited by Quinn, a member of a mysterious organization, to steal a prototype weapon and cause chaos, thereby luring out Koku. Savant detective Keith Flick sees through this diversion to identify an even greater theft. Meanwhile, Koku and Quinn engage in a battle using superhuman powers atop a runaway train. The resulting wreck is subsequently utilized to leave the Killer B signature, complicating the investigation.
2EP 2RIS Investigates Poison Gas Threat at Mayor's Gala in Staged Crime Scene
Mar 2, 2018The RIS discovers a body killed by poison gas at a staged crime scene, fearing an imminent release at the mayor's charity gala. While investigating the massive hotel undercover, the team prevents an attack on the mayor. The criminals subsequently seize control of the building's automation systems, threatening to release the gas. Koku is drawn to the event and follows Izanami to the rooftop, where the situation escalates as the antagonists maintain their hold over the facility's infrastructure.
3EP 3Kaela breaches lockdown while Minatsuki uses gas to hide involvement in crimes targeting Killer B.
Mar 2, 2018Kaela overcomes building security measures, and Minatsuki deploys knockout gas to conceal his group's participation. Keith recognizes that trivial offenses are bait for Killer B and attempts to chase the culprit by vehicle. Meanwhile, Izanami guides Koku from a rooftop to Lake Lenan, where she attempts to awaken his repressed memories. Koku resists and defeats her, after which she instructs him to touch Canopus. Elsewhere, Lily experiences a negative intuition regarding the criminal activities. Marco motivates both Lily and Bran by having them renew their oath of service to their cause.
4EP 4Keith recalls Erika's death while the team faces surveillance and a forced social gathering
Mar 2, 2018Keith experiences a vision of Erika Kazumi Flick being tortured and killed. Following this, he and Koku separately visit the royal library to conduct research. Lily insists that Keith apply his intellect to solve the mysteries behind the ongoing crimes. Meanwhile, Boris inadvertently invites the group to a drinking party at Keith's residence. Bran uncovers evidence that the entire precinct is under surveillance, but he is attacked before he can exit the building.
5EP 5Bran survives attack while team is ordered to distance themselves from the investigation.
Mar 2, 2018Bran survives the attack, but the team is ordered to keep their distance from the investigation, which appears to be an inside job. Lily and Koku each pursue Keith for answers. Kaela recovers data from Bran's damaged laptop, but the surveillance program is shut down before she can trace it. Keith receives a clue from Bran and sets a trap for his attacker, Jean-Henri, who turns it around by killing himself to frame Keith for his death. Koku snatches Keith away to the rooftop and asks if he is Canopus; Keith acknowledges Koku as Killer B or, rather, 13. Kamui falters as his need for a stabilizing drug increases.
6EP 6Keith reveals the Jaula Blanca Institute's dark history while Yuna confronts Koku in a tragic encounter.
Mar 2, 2018Koku demands Yuna's location, leading Keith to realize past messages were intended for her. As a murder suspect, Keith explains the Jaula Blanca Institute, which sought to recreate winged beings from fossils to restore ancient gods. The failed experiments produced malformed individuals used as the Market Maker strike team. Keith decoded a crucial inscription as a child, while his father pursued the institute's original goal. Market Maker eventually destroyed the facility. Yuna attacks Koku, who gains the upper hand until her eyes trigger his memories, revealing her identity. She stabs him, and her memories also return. Despite their mutual recognition, Minatsuki impales them both with a sword.
7EP 7Market Maker assault leaves Koku and Yuna impaled while Keith faces consequences
Mar 2, 2018Minatsuki carries an injured Yuna as Market Maker members attack Koku. Kamui distracts Koku while harpoons from the airship Moby Dick impale both. Keith shoots Minatsuki, whose wound burns, prompting a retreat to the airship under Laica's advice. Keith tends to Koku, who recalls childhood memories with Yuna at the institute before their separation during an attack. Koku absorbed body parts from fallen protectors but suppressed the guilt. The RIS receives a 24-hour ultimatum to locate Keith or face disbandment. Additionally, Regulus, the leader of the Market Maker revolt, amputates Minatsuki's left arm.
8EP 8Keith inquires about Dead Kyle while Lily investigates his notes and Takeru launches an attack.
Mar 2, 2018Keith hides and questions Koku regarding Dead Kyle, who allegedly murdered his sister Erika. Koku reveals that Kyle was a Reggie, a superhuman criminal released into society when unstable, similar to others Koku had killed. Keith briefly contacts Eric to signal that events are nearing a conclusion. Meanwhile, Lily examines Keith's notes, interpreting them as a cry for help and discovering details about Erika. Eric suspends her, believing she can locate Keith and assist him. Kaela constructs a secure system named Nautilus to track Lily, but Market Maker also monitors her movements. Shortly after Lily finds Keith with Koku, Takeru attacks the group.
9EP 9Keith exposes organizational madness while Gilbert attempts to kill Lily
Mar 2, 2018Koku kills Takeru, and Kukuri is strangled by Minatsuki after confronting him. Keith surrenders to reveal that the Market Maker’s madness has infected the organization. Eric criticizes Keith’s delay but admits his abduction of Dead Kyle was merely a tactic; he now provides a trained team to Keith. Keith suspects Gilbert, a childhood friend and forensics doctor obsessed with Erika. Despite Lily’s provocation, Gilbert sees through her manipulation and swaps places with Kamui and another Reggie to trap Marco and Boris. Lily wakes on a forensics table as Gilbert prepares to dismember her before Keith arrives.
10EP 10Keith discovers Gilbert's secret lab and trophy room while Gilbert escapes and severs ties with Laica.
Mar 2, 2018After Yuna wakes up healed but refuses to help Minatsuki, Keith searches for Gilbert and Lily. He deduces that Gilbert uses Erika lookalikes in a hidden lab inside the building. Keith and Eric locate a trophy room filled with preserved bodies, including Gilbert's father, the former institute chief executive. Gilbert calls Keith to taunt him, abandoning Lily to escape. He then orders Market Maker to eliminate everyone linked to their police work, but Laica refuses and ends their partnership. Distraught by this loss, Gilbert briefly breaks down before suppressing those emotions to ready himself for a final showdown with Keith.
11EP 11Koku reaches Moby Dick while Laica manipulates Reggie and attacks Yuna
Mar 2, 2018Koku utilizes an uplift to board the Moby Dick, where he confronts Minatsuki, who is revealed to be a memory-altered Reggie controlled by Laica. Laica plants a bomb on the airship, allowing Koku to escape via helicopter with Yuna and return to the fossil discovery site. Meanwhile, Lily wakes in the hospital and notes Keith is chasing Gilbert alone. Gilbert confesses to Keith that he deceived Minatsuki to lead an institute attack, aiming to free Reggies from military and royal control. Believing his actions fulfill a prophecy, Laica stabs Yuna.
12EP 12Koku visits Jetblack to rescue Yuna while Gilbert manipulates Keith into killing him.
Mar 2, 2018Despite Keith’s warning that the Jetblack might strip his powers, Koku enters to save Yuna from Laica. Laica is defeated by Izanami’s leg. Gilbert reveals he orchestrated Keith’s moral crisis to force him into choosing murder, aiming to align Keith with his ideology. Although Keith initially refuses, he shoots Gilbert in the head when Lily is threatened. In a post-credits scene, Kirisame, Koku’s childhood protector, is shown collaborating with the administration overseeing Market Maker and the RIS.
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Frequently asked questions
- How many episodes does B: The Beginning have?
- B: The Beginning has 12 episodes.
- When did B: The Beginning come out?
- B: The Beginning came out in 2018.
- Which studio made B: The Beginning?
- B: The Beginning was produced by Production I.G.
- Who directed B: The Beginning?
- B: The Beginning was directed by Kazuto Nakazawa.
- Is B: The Beginning finished?
- Current status of B: The Beginning: Finished.














