This CD is a solo album by Horie Yui (堀江由衣) .

The tracks are as follows.

1. Himitsu ~Prologue~
2. kiss to you
3. Coloring
4. True truly love
5. Himitsu ~Kimi wo Miteta~
6. Imakara Kimi No Moto he
7. PRESENTER
8. Immoralist
9. MISSION
10. DEAR FUTURE
11. CHILDISH LOVE WORLD
12. YAHHO!!
13. sky fish
14. Himitsu ~Machiawase~