The item you're referring to is an original soundtrack (OST) CD single for the anime series "Yo-kai Watch Shadowside" by the artist HardBirds. Here's some information based on the details provided:

- **Title:** Yo-kai Watch Shadowside
- **Artist:** HardBirds
- **Type:** CD Single
- **Country of Origin:** Japan
- **Anime Series:** Yo-kai Watch Shadowside
- **Contents:** The CD likely contains one or more songs performed by HardBirds that are featured in the "Yo-kai Watch Shadowside" anime series. These songs could include opening or ending themes, character image songs, or other tracks related to the series.
- **Packaging:** The CD comes with an obi strip, a narrow strip of paper or plastic that wraps around the CD case, typically featuring information about the artist, tracklist, and other details.
- **Release Date:** The specific release date would depend on the edition of the CD, but it likely corresponds with the airing of the "Yo-kai Watch Shadowside" anime series.

"Yo-kai Watch Shadowside" is a spin-off series of the popular "Yo-kai Watch" franchise, featuring a darker tone and storyline compared to its predecessor. HardBirds is a Japanese music group known for their contributions to anime soundtracks and theme songs.

Fans of the "Yo-kai Watch" franchise and collectors of anime music CDs may be interested in acquiring this CD single to enjoy the music from the "Shadowside" series or to add to their collection.

If you have any further questions about this CD single or its contents, feel free to ask!