Complex sentence: The opening theme song of the series is "By Yourself" by Miho Morikawa and the ending theme song is "Aki Kara no Summertime" ("Summertime from Autumn") by Yuuko Nitou.
Split into simpler sentences: The opening theme song of the series is "By Yourself" by Miho Morikawa. The ending theme song is "Aki Kara no Summertime" ("Summertime from Autumn") by Yuuko Nitou.