SSIS-602 I secretly love my brother's wife.

Inheriting her parents' home and living alone without children, Saki lives happily while humbly supporting her office worker husband. One summer day, while doing housework, a stranger suddenly burst in and robbed her property. Although she was extremely scared, Saki realized that the man was Kyosuke, her husband's younger brother. Owed black money, fired by the company. Forced by her desperate brother-in-law Saki. And just stay at home. The scum brother-in-law ran to his parents' house and was a monster of sexual desire.