Bloody Monday 4

Manga with a gripping storyline as the protagonist, Takagi Fujimaru, goes head to head with cunning and ruthless terrorists. He may seem like an average high-school student, but behind the cheery facade lies a genius hacker by the name of Falcon. When his father is framed for murder, Falcon uses his brilliant hacking skills to try and protect his sister and clear his father's name. However, he finds that his father, an agent an elite government agency, was involved in something far more complex than a simple murder - a terrorist group has Tokyo in its sights.