It's been three months since her husband disappeared with debts left behind... Mari and her only son Masaru, who have lost their home, are looking for a place to live. Meanwhile, a salesman suddenly stops and asks him to be running a "trial occupancy campaign" in a condominium for sale, and for some reason the two end up living there... The two forget about the unpleasant things and soak in a spacious bathtub. However, it didn't take long for me to turn back to reality. The next day, the salesman visits Mari again...