Tough-looking detective Yassan. A man overflowing with compassion, kindness, and deep concern for others. Widowed, he lives with his son Masakazu. The emotional support in Yassan's life is the hostess Mom from the bar "Sakura." One day, Yassan rescues Mom after she's raped by yakuza thugs, sparking the beginning of a romantic relationship between them. Overjoyed, Yassan believes he's finally found a happy family life—yet his son Masakazu becomes obsessed with Mom's flawless, translucent body, while the yakuza begin targeting her once again.