Nana is the youngest of three sisters, with a clingy and affectionate personality. She loves drinking and, despite working at a travel agency, will always follow anyone who invites her out. By the time she graduated from junior college, she had dated four men. After joining the company, she was favored by an older colleague, and they eventually got married. However, married life didn't go as smoothly as she hoped—her husband couldn't drink alcohol. Nana deeply enjoyed sex while drunk, and though she struggled with dissatisfaction in her marriage, she found herself unable to suppress her desires.