Undercover investigator Reiji Kikukawa, nicknamed "The Mole", learns that Shuho Todoroki, head of the Sukiya-kai, plans to purchase a shipping container full of 10 tons of amphetamines disguised as pasta being sold by the Italian Guillotina Family led by Don Razza. Reiji is tasked by the police with catching Shuho Todoroki and arresting him at the deal, thereby postponing Reiji's return to normal life as well as his marriage proposal to his girlfriend Junna.