旭丘分校的学生只有5人。即使学年和性格都各不相同，也总是在四季变换中一同享受着乡村生活。某天，旭丘分校的众人在百货店的抽奖中抽到了特等奖冲绳旅行券。于是，大家利用暑假时间前往冲绳……
Kotori Koiwai
Renge 'Ren-chon' Miyauchi (voice)
Rie Murakawa
Hotaru 'Hotarun' Ichijou (voice)
Ayane Sakura
Natsumi 'Nattsun' Koshigaya (voice)
Kana Asumi
Komari 'Koma-chan' Koshigaya (voice)
Shino Shimoji
Aoi Niizato (voice)
Rina Sato
Kaede 'Candy Store' Kagayama (voice)
Misato Fukuen
Hikage 'Hika-nee' Miyauchi (voice)
Kaori Nazuka
Kazuho 'Kazu-nee' Miyauchi (voice)
Ryoko Shintani
Konomi Fujimiya (voice)
Emi Shinohara
Aoi's Mother (voice)
Akiko Hiramatsu
Yukiko Koshigaya (voice)
Yuu Ayase
Lottery Stand Clerk (voice)
Asaka Imai
Kayak Instructor (voice)
Takayuki Ishii
Snorkel Instructor (voice)
