`BlackTech' to yoba reru Chūgoku-kei hakkā shūdan ni yoru saibā kōgeki ga sekai de aitsuide iru koto kara, Keisatsuchō ga Amerika no FBI nado to kyōdō de chūi kanki o okonaimashita.
Chūgoku-kei hakkā shūdan `BlackTech' wa, kigyō nado no jōhō o nusumi toru saibā kōgeki gurūpu de sekyuritī ga fujūbun'na kaigai no kogaisha o hyōteki ni shite nettowāku ni shin'nyū suru no ga tokuchōdesu.
Kōshita kōgeki wa genzai mo keizoku shite iru to sa re, Keisatsuchō wa Amerika no kokka anzen hoshō-kyoku = NSA, renpō sōsa-kyoku = FBI nado to kyōdō de chūi kanki o dashimashita.