A new "Orekami" series that delves into "dark eroticism" and embodies the twisted sexual desire of a husband who gets excited when his wife is seduced by another man. This time, Yui Nanase, with her big breasts and voluptuous, erotic body, appears. Her husband is a pervert who desires for his wife's voluptuous body to be violated by other men. The wife accepts her husband's forceful wish and unwillingly ends up having sex with her husband's calligraphy instructor. However, what the husband sees from the sidelines is his wife shaking her hips and bouncing her breasts in a lewd manner that he has never shown to him before...