Assassins

Kabuto is a highly skilled assassin eager to escape his dangerous profession and the hold his handler, the sinister Doctor, has over him. The Doctor, a real physician who hands over Kabuto’s targets as “prescriptions” in his regular appointments with him, doesn’t want to lose Kabuto as a profitable asset, but he agrees to let him pay his way out of his employment with a few last jobs. Only the most lucrative jobs involve taking out other professional assassins, and Kabuto’s final assignment puts him and his family—who have no idea about his double life—in danger.

Nanao ‘the unluckiest assassin in the world’ has been hired to deliver a birthday present to a guest at a luxury Tokyo Hotel. It seems like a simple assignment but by the time he leaves the guest's room one man is dead and more will soon follow. As events spiral out of control as it becomes clear several different killers, with varying missions, are all taking a stay in the hotel at the same time. And they're all particularly interested in a young woman with a photographic memory, hiding out on one of the twenty floors.