Nukazuke no Uta
Obentou Bako no Uta: Anata e no Otegami
Off Stage
Ofuro no Kazoe Uta
Ofuro no Uta
Ofuroya-san e Tsuretette
Ohayou no Uta
Ohirune no Yurikago
Ojii-chan Chi e Ikou
Ojiichan no Komoriuta
Ojiisan no Densha
Oka Shika Chika Ika Saka
Okaasan no Kao
Okome Kakurenbo
Okoru yo!
Omoide no Album
Omoide no Green Grass
Omoide Onigiri
Onaka no Ookina Ouji-sama
One Nyan Monogatari
Oniichan ni Natchatta
Oniichan Zurui
Ooi! Hanimaru
Ookina Furudokei
