K (Bloody Monday)

"Have them amass the main force. The plan is proceeding within predicted limits. Bloody Monday is near!"

- Anzai Mako revealed as 'K' "Bloody Mary is not an end. It is a beginning! Know this!! Ye ignorant fools!"

- Anzai Mako's dying words

Anzai Mako, also known as 'K', is the main antagonist of the Bloody Monday manga series' first season. She is the leader of the cult responsible for the terrorist attacks.

History
Anzai Mako was born as the result of artificial insemination from one of Kamishima Shimon's 'wives'. At some point in her early life in the cult, she had been designated as 'K', and was selected over J to be Shimon's successor. She fully and truly believed in the cult's doctrine.

After Shimon had been taken prisoner for a terrorist attack two years prior to the start of the series, Mako devised a scheme to take over the cult prematurely as well as get revenge on 'Falcon', the teenage hacker who unwittingly stopped Shimon. To get close to him, she enrolled in school and joined the newspaper club which Falcon (aka Takagi Fujimaru) was a part of, and also tracked down her biological mother, who was a researcher that was close friends with Fujimaru's father, and lived with her during her time in school.

She proceeded to hire a mercenary, Maya Orihara, to bust out Shimon and kill him when needed, as a true believer in the cult could never bring themselves to kill their beloved 'Father', as well as to procure the neutron bomb needed to commence Bloody Monday.

Bloody X
Anzai Mako was present when Fujimaru revealed himself as Falcon (she may or may not have already known this), and like the others, offers their support in stopping the Bloody X virus from killing everyone. For most of the time, she remained a background character, only frequently popping up as a supporting player.

However, as 'K', she worked behind the scenes tying seemingly unrelated events together in order to secure the release of Kamishima Shimon.