Koreeda Kazuki, an 18-year-old computer prodigy, lacks any exceptional talents beyond technology. However, his directionless existence takes a sudden turn when he meets the affluent Sakai Daisuke. The latter proposes an offer too compelling for Koreeda to reject: in exchange for becoming Koreeda's sponsor, Sakai demands that the hacker employ his expertise to assist him in achieving global domination. The narrative of two contemporary explorers, determined to fight worldwide illegal activities, commences in the cyberspace - a realm devoid of national boundaries.