[Oie Kaeru - Ouchi Kaeru] Inaka no Natsu to Midarana Kimi to ~ Natsu, Itsuka no Kanojo to Asedaku de Majiwatte… ~ 4[Oie Kaeru - Ouchi Kaeru] Inaka no Natsu to Midarana Kimi to ~ Natsu, Itsuka no Kanojo to Asedaku de Majiwatte… ~ 4