JUX-202 Hisayo Nanami, a mother-in-law who was vowed to submit to her son

Hisayo became a full-time housewife after accepting an enthusiastic courtship. Her husband is kind but often away on business trips, so they live by passing each other. His older brother, Shuichi, stubbornly refuses her, but Kazuhiko, the younger brother, accepted her heart. One night, after Hisayo returns from a bath, she finds Kazuhiko searching for underwear in her room, and his behavior becomes more concerning.