Forty-five-year-old Junko Ukita was raised as a proper lady in a strict household, flourished as a talent in her twenties, and thrived as an entrepreneur in her thirties, enjoying a smooth and successful life. However, a sudden corporate takeover brings an unexpected misfortune, marking a turning point in her life. A new chapter begins in her forty-five years of existence, during which she has never known the pleasures of sex. Will her sexual awakening finally arrive?