In this game, the protagonist is a shy and insecure young man. He lost his mother when he was a baby and never interacted much with women, since his family was just his father and two older brothers. To tell the truth, he avoids contact with women, due to being exaggeratedly shy. Since he is a loser and cannot even pass the test to enter a University, his father sends him to Tokyo alone, to study in a preparatory school. Living on his own, the protagonist meets his two new neighbors: an energetic and happy housewife and a serious and lonely widow.
Moreover, the protagonist wants to enter the arts University, but, because he is so shy with women, he cannot paint the nude models, thus not able to pass the entrance exam.
The protagonist needs to "train" his painting techniques and a model to pose for him in nude, so he can defeat his shyness. Which woman the protagonist will choose to help him out? This is your choice.