The album includes four of Akina's original written songs: "Niji", "I Hope So", "Veil" and "Days".

[1][2] "Days" is the forty second single written by Nakamori herself and Oda Tetsuro.

The single was promoted as an ending theme to the Japanese television drama Onna to Ai to Mystery.

[3] The single was included in the compilation album Best Finger 25th anniversary selection and All Time Best: Originals.

[5] "Days", "Utsutsu no Hana", "Tsumugi Uta" and "Kaze no Hate" has been performed in the anniversary live tour Akina Nakamori 2003: I Hope So.