From Tokyopop:
Rival gangs from various Tokyo barrios battle over turf, leaving many a foot soldier bloodied in the violent clashes. But when the heat between two of the clans waxes personal, a bitter rivalry explodes into all-out warfare.
Manga-ka Santa Inoue's hard-hitting, fantastical tale of Tokyo street thugs battling it out in the concrete sprawl of Japan's capital raises the bar for manga storytelling, transcending genres and conventions.