Delinquent Housewife GN Vol 03

High school sophomore Dai Komukai meets his sister-in-law, Komugi, who moves into the Komukai household. After his brother leaves for a business trip, Dai senses something weird with his sister in law. Outwardly nice and cute but Dai finds out that she actually can't cook or do laundry! And then one night he finds out another big secret!