Tracklist
| A1 | P.S. I Love You |
| A2 | You're Kidding! |
| A3 | 綺麗になりたい |
| B1 | You Never Know |
| B2 | 真夜中のポートレイト |
| B3 | One Step Up |
Companies, etc.
- Manufactured By – Humming Bird Co., Ltd.
- Distributed By – Pioneer LDC, Inc.
Other versions
| Category | Artist | Title (Format) | Label | Category | Country | Year |
|---|---|---|---|---|---|---|
| HBCL-7035 | Pink Sapphire | P.S. I Love You (CD, MiniAlbum) | Humming Bird | HBCL-7035 | Japan | 1990 |
