My beautiful sister-in-law, knowing that she's sexually frustrated and uses dating apps to find men...! Hamasaki Mao PJAM-021

Mao lives with her husband, an office worker, her adoptive father, and her brother-in-law—a family of four. She does housework every day and lives a happy life with a smile, but she feels somewhat unsatisfied because her husband isn't very sexually active at night. Mao's pleasure comes from masturbating in the empty bedroom after everyone else has left and browsing dating apps on her phone. However…