Would you like to live with a beautiful woman? Of course, there’s that one too …… One day, after working several part-time jobs to pay off his father’s debts, Akira finally runs out of energy and collapses on the side of the road. It’s Akira who was helped by Eri, a beautiful older sister who happened to pass by. However, the beautiful older sister has one habit and two habits … and cohabitation has begun …?