<Regular Edition cover>
- 13th single
- Released 18 January 2012
- This single released in 2 edition : Limited & Regular edition
- Hatsukoi Cider was the ending theme song for the Hello! Project member TV drama "Suugaku♥Joshi Gakuen"
- DEEP MIND was the theme to the Buono! horror movie "Gomen nasai"
- Hatsukoi Cider ( 初恋サイダー )
- DEEP MIND
- Hatsukoi Cider (Instrumental) ( 初恋サイダー (Instrumental) )
- DEEP MIND (Instrumental)
Buono! - Hatsukoi Cider PV
Buono! - DEEP MIND PV