Marriage is the thirteenth studio album by Japanese Pop band Deen.

The album consists of only one previously released single, Kokoro kara Kimi ga Suki ~Marriage~.

This single, its B-side, Ame ga Itsuka Agaruyouni and Flower, the B-side for the single Brand New Wing received new arrangements for this album under the sub-titles Album mix.

For this album the band collaborated with the famous Japanese novelist Shin Kibayashi who wrote lyrics for them (with help of Shuuichi Ikeda) for four of the ten songs on the album.

[3] All lyrics are written by Shuuichi Ikeda (except of #1,3-5, by Shin Kibayashi)