Shiho Hatanaka, 40, is known for participating in various marathon events. A full-time housewife married for 14 years, she is the mother of one son (age 10). Among women her age, she stands out with exceptional stamina, and her energy is evident in daily life. In her relationship with her husband, always seeking satisfaction, she frequently indulges in masturbation when he's not around. Especially when no one else is home, she sometimes spends long hours pleasuring herself. With a strangely delighted expression, she pulled out a sex toy from her bag and showed it to us.