This work features a shy and socially anxious virgin's first sexual experience, assisted by a sexy, cheerful, and gentle married woman, and upon watching it, I found the content highly impressive. The lead actress, Yuna (29 years old, married for 6 years, B85D cup), is portrayed as free-spirited with a boyfriend and a fuck buddy, and she transforms the 22-year-old college student Ren into a 'man' in a detailed process. The ultra-high-definition 4K video enhances the realism, and Yuna's gentle guidance stands out from typical defloration works, offering a warm touch. Her performance is versatile, shifting from a cute, loli image to a sexy and tender older sister role, executed perfectly; particularly, her expression while watching Ren before he climaxes in the missionary position is exquisite, drawing viewers in. The male actor Ren, though playing a virgin, delivers a natural performance that feels authentic even through mosaic, making the defloration scene believable. The entire work is both adorable and erotic, filled with charm that invites repeated viewings, showcasing Yuna's growth.