​Discover the thrilling story of Asakura Yuu, an ordinary university student who stumbles upon a mysterious duffle bag containing a gun and orders for an assassination. Initially terrified, Yuu’s personality undergoes a transformation as he embraces the power that comes with holding the smooth metal weapon. Brimming with newfound confidence, he embarks on a journey filled with relentless action, erotic encounters, and intense shootouts. Returning to his campus, Yuu effortlessly seduces any girl he desires, attracting attention from both the syndicate and law enforcement. Yet, amidst the chaos, the true threat lies in the gun’s original owner, as Yuu becomes entangled in a dangerous game of desire, violence, and survival.​