An older brother and sister living together in a simple old house. After retiring, the brother spends his time taking care of his sick younger brother while leading a plain and manly life without any sexual desires. One day, when the younger brother forgets where he lives and can't find his way back home, a neighbor named "Konatsu" helps him get back safely. As they become friends, the brother starts giving her snacks and treating her kindly. Their dull and smelly house becomes brighter and more pleasant... However, there might be some differences in the recorded contents depending on the distribution method. #ElderBrotherP※