Template:CD Infobox Jyuugatsu no Ningyo is Okada Yukiko's third studio album. The album reached #4 on the Oricon charts.
Tracklist
Side A
- Sweet Planet
- Mizuumi (みずうみ; Blue Sea)
- Kachouzu (花鳥図; Viewing the Flowers and Birds)
- Kanashii Yokan (哀しい予感; Upsetting Foreshadow)
- Lonesome Season (ロンサム・シーズン)
Side B
- Ryuusei no Kougen (流星の高原; Meteor plateau)
- Bien
- Jyuugatsu no Ningyo (十月の人魚; The October Mermaid)
- Mizuiro no Princess -Mizu no Sei- (水色プリンセス-水の精-; Light Blue Princess -Water Fairy-)