Yuu-san is a young wife with big breasts who is shy but has a lewd personality. Her body reacts sensitively even when she is touched a little. She has appeared in adult videos without her husband's knowledge and has gone on short trips in search of excitement. However, even this sexually uninhibited young wife has never experienced anal sex... She can't help but let out a cry of orgasm at the stimulation she has never experienced before and the different sensations from usual!