A documentary-style work featuring simultaneous vaginal and anal penetration! The film focuses on careful, gradual anal loosening with a meticulous, time-taking approach. However, things progress too smoothly, leading to an unexpected turn of events—just as they're about to begin anal sex, Hitozaka Hitomi suddenly runs out of the studio, forcing production to halt. After successfully persuading her, filming resumes. Then comes a bold development: penetration in both her pussy and ass. Hitomi cries out, "Uwaaa!", as she's led to her ultimate pleasure through her first sandwich fuck.