In 1988, American video game salesman Henk Rogers discovers the video game Tetris. When he sets out to bring the game to the world, he enters a dangerous web of lies and corruption behind the Iron Curtain.

Set in a future-world vision of Tokyo where the police have been privatized and bitter self-mutilation is so casual that advertising is often specially geared to the “cutter” demographic, this is the story of samurai-sword-wielding Ruka and her mission to avenge her father’s assassination. Ruka is a cop from a squad whose mission is to destroy homicidal mutants known as “engineers” possessing the ability to transform any injury into a weapon.