Wakui Riko works as an office lady and is known for her refined facial features and charming smile. She is very popular among male coworkers, receiving strong attention from both senior managers and younger male subordinates. Her popularity sometimes sparks jealousy among female colleagues, though she currently has no official boyfriend. Instead, she maintains physical relationships with several "more-than-friends" partners—essentially sex friends. Among them is a senior manager she met about three years after joining the company. Their relationship began when they were seated next to each other at a year-end party, leading to a hotel encounter, and has continued since. The older man gently coaxes her emotionally, creating an intimate dynamic. She's also involved with a 23-year-old salesman whose blend of masculinity and cuteness attracts her. She's highly satisfied with their youthful, energetic sex life and continues seeing him. In fact, she rotates among multiple partners for regular sexual encounters. The main feature clearly showcases her aggressive, dominant side, especially in cowgirl position where her skilled hip movements reveal her true nature as a bold, experienced amateur. When asked about her reason for participating, she laughed and said, "I get to enjoy sex and earn money too—killing two birds with one stone." Her smile blends eroticism with innocence, making this a highly entertaining mature shooting title from Shirouto TV.