Those two days of wildly having sex with my casual sex partner, Ria Yamanate, who was always at my beck and call and completely submissive to my tastes for rough sex. (SSIS-614)

Today, I invited Ria, a slender, somewhat rustic beauty with unusually lewd breasts, to my house. She looks innocent but is actually a lewd masochist with sexual fetishes. She likes me, but I don't want to date her; however, she's excellent as a sex partner. This is a record of countless self-satisfied sexual encounters, where she indulges her instincts in every teasing moment—in her own bed, bathroom, and entryway—all within her own body.