A beautiful, innocent heiress with large breasts loses her virginity and is penetrated on her first time. Ryoko Uesaka (WANZ-075)

Ryoko Uesaka, a cheerful girl, is still a virgin because she prefers studying and club activities to romance. Driven by a strong interest in AV, she comes to take on the challenge and becomes completely immersed in pleasure, attempting a deep penetration sex act!