In the neon-lit nights of Shibuya, a mysterious illegal drug spreads through the streets. Shu Hikidashi, who starts a part-time job through the introduction of an older acquaintance, quickly finds himself making large sums of money. Before long, however, he realizes that the job is deeply connected to the enigmatic drug.

Determined to walk away, Shu tries to leave the operation behind. But Annie Tachibana, the mastermind behind the business, refuses to let him go—and instead lures him into a twisted paradise of madness…