After remarrying her loving husband who works late, Yumi spends her days masturbating to fill the void of loneliness. She hatches a plan to relieve her boredom with her stepson, Masanori. One day, she catches him masturbating while wearing unfamiliar goggles. Unable to resist, Yumi starts masturbating as well, eventually mounting him in cowgirl position and uniting with his raw dick. Driven by loneliness, the two impulsively engage in a forbidden relationship. Sharing the secret with her husband, they become accomplices. Lost in the thrill of hidden sex, they eventually give in to the point of accepting creampies. This special edition includes behind-the-scenes footage from the shoot. Yumi was excited about the making-of and happily cooperated to show fans the behind-the-scenes. The producer even visited the set, resulting in a comical scene. The making-of also captured Yumi's natural side during rehearsals.
Serebu no Tomo
