Rika started dating Hikari, who had confessed to her since childhood. However, Hikari's dick was small, so she didn't immediately notice when it was fully inserted. Meanwhile, another childhood friend, Saburo, also had feelings for Rika. Rika accidentally saw Saburo's dick and was surprised by its size. Unable to suppress her curiosity about the drunk Saburo's dick, she touched it, but Saburo woke up. He then realized that Rika wasn't satisfied with Hikari's dick and raped her.
