Possessing outstanding looks, she worked at a department store after high school but found the catty, jealous world of women unbearable, so she switched careers to the construction industry. There, her talents flourished, and she's been working on job sites ever since. Though she appears tough and rough like a gruff middle-aged man, she's actually shy about using vulgar language and embodies a traditional, gentle older sister type. The content begins with aggressive big-tit bullying of male masochists, gradually shifting into soothing, playful titfuck fun. Drawing from her wild youth, she's developed a broad heart and deep compassion, fully accepting and supporting all flawed male submissives as a dependable big sister figure. The climax of this work features sex with an elderly man, truly revealing her maternal nature.