The Serpent's Tail

In the neon-drenched metropolis of Shinagawa, a brilliant whistleblower named Akemi uncovers a massive securities fraud orchestrated by a powerful financial mogul. Before she can expose the truth, she is forcibly committed to the infamous Kamizuki Psychiatric Institute, a facility where inconvenient truths are buried under layers of sedatives and electric shocks. The only person who might believe her is Dr. Takeda, a weary psychiatrist haunted by his own complicity. As Akemi battles the numbing fog of medication to prove her sanity, she realizes the greed that put her here is not just a crime of the powerful—it is a primal, evolutionary instinct, a serpent's tail humanity cannot shed, poised to strike anyone who threatens the established order.