A beautiful wife dyed in her father-in-law color

Mirai, a wife, feels empty in her sex life with her selfish and overbearing husband, and lately it has become her daily routine to comfort herself with her own body. Unsatisfied with her own fingers, Mirai secretly buys a vibrator online...and her father-in-law, Kozo, finds out! ``Can you teach me how to use this, Mirai-san?'' Kozo approaches Mirai. Mirai, who was aching with frustration, was made to cum over and over again by Kozo's forceful torture...