Fujimaru Takagi

Fujimaru Takagi is the main protagonist of the series. He is a second year high school student, who appears to be an average teenager, but he is secretly, the popular "Falcon", a genius computer hacker who has revealed crimes and outed several dirty politicians. He is the son of Ryūnosuke and Kanako Takagi and the older brother of Haruka.

Appearance
He is shown to have dark-colored brown eyes and hair. When he goes into Falcon mode his pupils become slits. It appears to be inherited, as his father also does this when fighting.

Background
Fujimaru was a second year high school student at Mishiro Private Academy and a member of the Newspaper Committee. Unknown to everyone (but his father, the PSIA, and the Newspaper Club), he is the popular Falcon, a hacker prodigy who hacks into corrupt people's computers and brings their crimes to light. His remarkable computer skills are a legacy from his deceased mother, who taught Fujimaru how to use a computer before her death.

First Season
Fujimaru, who had stopped his hacking at his father's request, was forced to return to the computer when things became more complicated for him and his sister, when their father was falsely accused of murdering his superior.

Through his investigation, Fujimaru discovers a deadly virus, and that virus brings its enemies from all over the world. Friend and foe become nearly impossible to distinguish — everyone Takagi meets becomes capable of betrayal.

Second Season
In the second season, Fujimaru is shown be living a relatively normal life — working at a cafe, and studying to pass the college entrance exams, which he had failed once — on purpose, as Otoya put it. He seemed to have put his hacking days behind him due to the events that occurred during Bloody Monday. But it was later revealed that he was actually still working for Third-I as a hacker.

However, he ends up targeted when he prevented a plane from crashing into the National Diet building, a nuclear meltdown and also the handing over of Pandora Box to the terrorists. In the end of Season 2 he develops romantic feelings for Hibiki.