The stage is 2020. Mamoru, a second-year high school student who likes indoors, has feelings for Aya, a pretty girl who lives next door. However, Aya decides to move her out due to adult reasons, and Mamoru, who doesn't want to leave her, summons up her courage and proposes a plan to run away from home with her. The best-selling novel "Our Seven Days War" transcends time and sparks a new adventure. Theatrical version animation "Bokura no 7 Days War" comicalized!!