Keisuke and Makura are childhood friends who grew up together, almost like brother and sister. One day, following a misunderstanding between them, Makura left the house in anger. Keisuke's mother grew worried when Makura did not return home, so she instructed Keisuke to go look for her. Reluctantly, Keisuke went out to find Makura. He ended up at a place they used to visit often: the sunflower field. Luckily, Makura was there. Keisuke sat down on the bench beside her, and they began to reminisce. When Keisuke decided they should head back home, he called her mother to report that he had found Makura. He was shocked when she told him in panic to go to the hospital. At that exact moment, he looked at Makura, who was not standing but floating in the air...