This time, genius investigator Yagi Nana makes her debut in the undercover investigator series! The black jumpsuit creates a contrast with her natural image, enhancing her appeal even more. The story, spanning about 120 minutes, is packed with intense interactions, and her struggles are certainly captivating. In her rider suit, her beautiful body is prominently displayed, and the moments of reaching climax while resisting feel incredibly real, showcasing her high acting ability. However, the buildup towards the end is somewhat subdued, raising questions about the effects of gas, and there are moments where a bit more aggressive direction would be desired. Nonetheless, I was overwhelmed by Nana's visuals and expressive abilities, making it a work I definitely want to rewatch.