~Missing you~ (romaji for 全開恋心) is the fifteenth studio album by Japanese Pop band Deen.

The album consists of two previously released singles, Kimi ga Boku wo Wasurenai you ni Boku ga Kimi wo Oboeteiru and Sen Kai Koigokoro!.

Kouji Yamane's new song of Shangai Rock Star series had been released in this album as well.

Emerald Ocean is the original and the first song performed by composer Shinji Tagawa.

[3] All lyrics are written by Shuuichi Ikeda (expect #6 (Shinji Tagawa) and #10 (Kouji Yamane)