At a bus stop on a drizzly morning, Takanashi Tokio meets a boy in an unfamiliar uniform. In homeroom that day, the boy he saw in the morning, Kisaragi Ame, arrived as a transfer student. The students are upset to see him, a high school pianist in the city, transferring to a rural school in the countryside. This summer, when the two met, was the beginning of an important love story. This is a coming-of-age love story of a friendly boy and a transfer student with a reason!