"Will you marry me? To protect our single lives." Takuya and Rika, who work in the planning department of JTC, a travel agency in the metropolitan area, are not good at socializing. Although they are plain and simple, they each live a fulfilling single life. As the company plans to open a branch in Siberia, singles will be given priority to be sent overseas. Rika, who is in trouble, proposes a plan to Takuya... Two people who have hardly spoken to each other are going to get married in just 365 days!?