; : :A second year high school student and a member of the Newspaper Club. Unbeknownst to everyone (except his father, the PSIA, and the Newspaper Club), he is also
Falcon, a genius
hacker who breaks into corrupt people's computers and exposes their crimes. He possesses exceptional computer skills, which he developed at the bequest of his late mother, who taught Fujimaru how to operate a computer before her death. Fujimaru is later depicted living a somewhat regular life, working at a café and preparing to pass the college entrance tests, which he had failed once - on purpose, as Otoya put it. Because of the events of Bloody Monday, he appeared to have put his hacking days behind him. It was later revealed that he was still working as a hacker for Third-I, and that his café manager was also a member of Third-I. However, he prevents a plane from flying into the National Diet building, a nuclear catastrophe, and a terrorist organization from taking the Pandora Box. It is revealed that he was introduced to hacking through Peter Pan (who is one of the terrorists). He later develops feelings for Hibiki. ; : One of eight identical humans created from genetic material taken from male and female agents with the top results over three generations of agents who had gone through the facility. She later develops romantic feelings for Fujimaru when he tells her she is more than just a clone. ; : :The person responsible for the Christmas Massacre and the procurement of the "Bloody-X" virus in Russia. When she returned to Japan, she disguised herself as a biology teacher at Mishiro Academy High School to monitor Fujimaru Takagi. Considering she is a cold and calculated murderer who does not care who dies to attain her goal. Eventually revealed to be a paid mercenary for the main terrorist group, with just the money given to her form the mission in mind. She survived the experience as a whole, but she does not acquire the money she was anticipating, much to her dismay. She subsequently reappears working for an as-yet unidentified organisation opposed to the major antagonists, prompting her to throw her support to a sceptical Fujimaru. ; : :A third-year student, President of the Newspaper Club, and an accomplished archer who has ranked second at the national level. He is Fujimaru Takagi's childhood friend and "back up" - having been informed of every exploit Fujimaru Takagi undertakes as Falcon. He was the only person outside of Third-I who knew of Fujimaru's extraordinary hacking abilities at the start of the series, and he was the one who alerted the Newspaper Club about Takagi's work (with Fujimaru's agreement). Otoya had feelings for Fujimaru's younger sister, Haruka. Masamune Kuj, the Minister of Justice, is his grandfather. It is eventually discovered that "J" is his half-brother, and he finally gets to meet his parents, whom he was taken away from by his grandpa. Otoya later returns as a college student. ; : :Fujimaru's father works for the
Public Security Intelligence Agency under its secret Third Division, aka Third-I, as its Vice Director. He was framed for the murder of Director Okita and spent some time on the run while he attempted to solve the mysteries of "Bloody Monday." He is finally proved innocent, despite suffering multiple injuries throughout the series. Rynosuke goes undercover in a cult he entered eight years ago to avert a terrorist assault that might eclipse the "Bloody Monday" danger. He is killed while attempting to slow down the terrorists. He was a double agent known among the terrorists commanded by Alexei as 'Beast' (the shooter of the magic bullet) ; : :A second year student and Vice President of the Newspaper Club. She is Fujimaru's father's karate apprentice and a competent combatant. She appears to have a crush on Fujimaru and frequently flirts with him. Asada is accepted into a karate college, despite the fact that of the gunshot wound she received from Orihara during the "Bloody Monday" event that left a significant scar on her leg. It has also been established that she is being kept in the dark about "Falcon's" ongoing actions. ; : :AA first-year student who is a member of the Newspaper Club. She admires the hacker "Falcon." After discovering that Fujimaru was him, she gained a slight crush, more of an obsession, with him. She is eventually revealed to be "K," the mastermind behind the terrorist cult responsible for the "Bloody Monday" catastrophe. When the cult's leader is killed shortly after escaping from jail, she seizes control of the organisation and sets the ultimate events in action. However, when the final hour approaches, she is betrayed and slain by her helper Judas. Despite being "K" and having plans to destroy Tokyo, her death was very difficult for Fujimaru, who still has regrets about it. ; : :A second-year student and member of the Newspaper Club. He appears to be the most ignorant and inept member of the group, yet he attempts to assist Fujimaru in any way he can. He shares his home with his father, stepmother, and stepbrother. His stepmother and her brother are both members of the terrorist cult. He dies after discovering his stepfamilies hidden associations, as a result of his stepmother infecting him with the "Bloody-X" virus. It is assumed that his father was shot by his stepmother in order to tie up loose ends. ; : :Fujimaru's younger sister by two years. She suffers from
kidney failure, requiring
dialysis about every three days. Haruka appears to have a crush on Otoya. She is later seen to be considerably healthier as a result of receiving home dialysis equipment from Otoya and his grandfather, which allows her to get treatment while sleeping. For fear of affecting her health, she is frequently kept in the dark regarding events involving Fujimaru and her father. ==Media==