Keiko Takahashi is 19, the pampered only daughter of Hiroshi Takahashi, a wealthy real-estate mogul who secretly runs one of Tokyo’s most ruthless modern yakuza networks—high-stakes property laundering, underground lending, and influence peddling. To her father, Keiko is still his innocent “baby girl”—the sweet, sheltered teen he spoils with designer bags, a chauffeured Bentley, and a sprawling penthouse. He forbids her from dating, parties too hard, or anything that might “taint” her. He still calls her by childish nicknames and believes she’s focused on “finding herself.”