

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 wrongdoer...
When a masked assassin and a fallen detective clash, the truth behind Cremona's shadows shatters everything.
On the crime‑ridden islands of Cremona, a masked avenger known only as Killer B stalks the streets, doling out lethal justice with a razor‑sharp blade and uncanny powers. The Royal Investigation Service, baffled by his unstoppable rampage, summons the disgraced but brilliant detective Keith Flick—a man whose career was sidelined after a personal tragedy. Paired with the impulsive rookie Lily Hoshina, Keith is thrust into a labyrinth of murders, political assassinations, and covert experiments that hint at a deeper conspiracy. As the duo delves deeper, they discover that Killer B is not a lone wolf but part of a tangled web of secret societies and government machinations. Unlikely alliances form when the enigmatic vigilante offers cryptic assistance, forcing Keith to question his own loyalties and the true purpose of the RIS. With each revelation, the line between hero and villain blurs, exposing a city where power corrupts, justice is a commodity, and the only certainty is that nothing is as it seems.
A stylish supernatural crime thriller where a brilliant detective hunts a vigilante killer while uncovering a conspiracy involving child experimentation and government corruption. Expect intense, bloody action and dark thematic material that makes it best suited for mature teens and adults.
B: The Beginning has 12 episodes.
B: The Beginning is currently finished airing.
B: The Beginning was produced by Production I.G.
B: The Beginning aired Mar 2, 2018.
B: The Beginning is based on a Original.
A stylish supernatural crime thriller where a brilliant detective hunts a vigilante killer while uncovering a conspiracy involving child experimentation and government corruption. Expect intense, bloody action and dark thematic material that makes it best suited for mature teens and adults.
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Hoshina, Lily
Main
CV: Seto, Asami

Kazama Flick, Keith
Main
CV: Hirata, Hiroaki

Kokuu
Main
CV: Kaji, Yuuki

Abbot
Supporting
CV: Hatano, Wataru

Blue
Supporting
CV: Mine, Akihiro

Brandon, Brian
Supporting
CV: Toyonaga, Toshiyuki
Crouse, Richard
Supporting
CV: Fukuhara, Katsumi
Henry
Supporting

Hoshina, Yukio
Supporting
CV: Nishimura, Tomomichi

Hoshina, Kai
Supporting
CV: Mizushima, Daichuu

Izanami
Supporting
CV: Saiga, Mitsuki
Julian
Supporting
CV: Mine, Akihiro

Kamui
Supporting
CV: Nakai, Kazuya

Kazama Flick, Heath
Supporting
CV: Yasuhara, Yoshito

Kazama-Flick, Erika
Supporting
CV: Yaehata, Yukine

Kirisame
Supporting
CV: Terashima, Takuma

Kukuri
Supporting
CV: Kameda, Nozomi

Laica
Supporting
CV: Kitada, Yuu

Meyer, Boris
Supporting
CV: Inaba, Minoru

Minatsuki
Supporting
CV: Ishikawa, Kaito

Quinn
Supporting
CV: Awane, Makoto

Red
Supporting
CV: Fukuhara, Katsumi

Reyes, Ian
Supporting
CV: Shinomiya, Gou

Richard, Jean Henri
Supporting
CV: Gotou, Atsushi
12 episodes
2014 Summer
2012 Fall
2006 Fall
2004 Spring
2014 Summer
2018 Summer
2011 Spring
2007 Spring
2009 SpringRanked higher than 80% of all anime on AniTome (out of 19,551)
More popular than 96% of all anime
Production I.G also made