Mahi-san, who has been married to a childhood friend for two years. Her husband doesn't seem to be keen on having children, even though she wishes she had a child soon. Because of that, her husband has little interest in sex, and even the occasional sex is very simple, with little to no foreplay. Every time she has such sex, she feels empty, and a coldness and desire to cheat sprouts in Mahi-san. Since then, when she knows her husband will be home late, she meets a man she met on an affair site, as if to alleviate her loneliness... Eventually, the sex she was doing to forget her loneliness becomes a pursuit of pleasure, and she volunteers to appear seeking higher quality pleasure.
