: A beloved ballad that became a staple for covers by other artists.

These discs showcase her instrumental talents (drums, piano) and more mature songwriting.

: Her final single before her initial retirement in 1999. High-Fidelity Listening

The compilation is typically split into two eras, often seen on Apple Music as separate digital volumes. Disc 1: The Idol & Dance Queen Era (1987–1992)

: Noted for its emotional lyrics and Moritaka's recorder solo.

: Includes all 45 A-side singles released between 1987 and 1999.