- 花の雨 (Hana no Ame) (Unreleased)
- 蒼い海 (Aoi Umi) (Unreleased)
- 親愛なるきみへ (Shinainaru Kimi E) prod. by Chris Chu (JPN)
- ブリキと銀とウォルナット (Buriki To Gin To Walnut) prod. by Chris Chu (JPN)
- 青い栞 (Aoi Shiori)
- 青い栞 (アニメサイズver.) (Aoi Shiori (Anime Size Version))
- ダンボールと青い空 (Danbouru no Aoi Sora) (Unreleased)
- くじらの骨 (Kujiranohone)