Since before the dawn of memory, one thing has defined human history: the war betweenninjasandyakuzas. This coarse and manly manga follows two members of these warring tribes who fill the gutters of modern Tokyo with blood to determine which elemental force will reign supreme!An outrageous new action series, likeJojo's Bizarre AdventuremeetsFist of the North Star!A Grand Slam Whack JobBaseball star Hiroi Ohmaga returns to the yakuza, lured by dreams of his biker gang past. In a surprise play, he battles the shape-shifting ninja Zanzo Kazai, and it's a deadly home run derby. Meanwhile, violence continues on the Teito Highway as the ninja valiantly keep fighting. What began as a youthful joyride becomes a painful wake-up call to grow up. For Shinoha and Kiwami, will this mean lights out on their friendship?Win or go home dead.