Born in the aftermath of World War II, Hosoki grew up in poverty and became involved in the nightlife scene at an early age. By her twenties, she was running a string of successful clubs in Ginza, where she earned the nickname "The Queen of Ginza." Building on the instincts she developed there, she later transformed herself into a fortune teller, whose influence spread throughout the country. She gained fame with her self-invented Six Star Astrology and became a household name thanks to bestselling books and frequent television appearances. Revered by some and feared by others, she left a legacy that still provokes fascination and debate.