In order to save Mitsuha and the others from the Tiamat tragedy. Taki works with Tesshi and Saya-chin to come up with an evacuation plan. "Let's save Itomori together!" In the morning, when I wake up, there are tears on my face. It happens sometimes. As if I've been searching for someone or something. I started having that feeling... probably since that time. This is an encounter between two who have never met before. Here is the final volume of a miraculous story of one boy and one girl.