Fifth-grader Kijima Kaito moved with his family to his father's hometown on Ogijima island when his mother got sick. He's lived with his father and grandfather in a household of three ever since his mother's death, but his father resumes his work as a cameraman and leaves the island. Kaito deals with his loneliness and finds he can really relate to his classmate Takagi Yu, a transfer student at his school. (Source: JFDB)