Sudo"s dream is to find a good couple and create a family. In his school there is a club created specifically for the fulfillment of this dream: a club of activity in concept and motherhood. This club, approved by the government, encourages pregnancy among students and organizes events related to family planning. After the selection, Sudo manages to become a member of the club. Two girls show interest in becoming his partner: Timi Tono and Aika Aska. However, Sudo can choose only one, and for a decision, he is provided with a trial period of one week. During this period, Sudo will meet with UMI and Aika alternately to evaluate physical and emotional compatibility with each of them. Every day, Sudo begins to experience a strong desire to make both girls happy, and UMI and Hayka, in turn, openly express their feelings for him. Once in a complex dilemma, Sudo is worried so as not to injure any of them, but the time of the trial period quickly comes to an end.