31-year-old office lady Yui makes her appearance! She has a healthy, athletic build with a sporty tan, creating a striking contrast between her looks and profession. Though she comes across as surprisingly shy, soft-spoken, and gentle, she possesses a well-toned body and holds an allure that defies her age—she could easily pass for a decade younger. Despite being single, she visited a love hotel a month ago, which naturally raises some curiosity. However, due to adult circumstances, we won't go into details about her previous partner. She admits to using a vibrator for masturbation when aroused, yet there's a mystery—despite owning a vibrator, she claims not to use it alone. It seems she only uses it during partnered play. This time, she came because she "wanted to have sex"—a glimpse into the confidence and desire of a mature woman.