Naomi, a middle-aged woman, arrives at a house to meet her boyfriend and escape the country with 50 billion yen, only to find him gone, the money missing, and a blood trail leading to a closet. Inside, she finds a bloodied, naked young man, whom she takes to the hospital. Despite his memory loss, she gives him a new identity, Yukio, and hires him as a courier at her company. As Yukio