It's the year 20XX, and the latest technologies are protecting the nature of rural towns. The main character, Ruuto, and Michi, are childhood friends. But during the second year of junior high, as Michi moves to an urban area, the two drift apart. Ruuto doesn't want Michi to forget him. Michi doesn't want to show her weak side. The two friends go their separate ways. Mobility services transcend space and time and connect their hearts.