Yuki Kobashi (35 years old), who lives in Chiba Prefecture, considers her birthday to be a milestone and is thinking of withdrawing from AV only for this work. - At first, she is confused by being vaginal shot by another man other than her husband, but when her sensitivity increases and she loses her reason, she continues to writhe in the stimulation of the she feels raw. The sexual curiosity of a real married woman who prioritizes pleasure while feeling indebted to her husband flares up.