PJAM-034 The big-breasted wife Yoru Asuna, who was asked by her father-in-law, a painter and wealthy man, to be a nude drawing model and was seen by her brother-in-law while being penetrated internally.

Asuna lives with Masazou. Due to Masazou's business struggles, he asks his wealthy and painter father Genzou for a business loan. Although Genzou agrees to the loan, he demands that Asuna work as a helper in their home. Asuna accepts, but Genzou then asks her to be his sketch model, gradually demanding she remove her bra and eventually become fully naked. Excited, Genzou ejaculates inside her. Masazou's older brother Shinzou witnesses the entire scene! Shinzou, who has feelings for Asuna…