The Day is the third studio album by Japanese rock band Deen.

The album consists of two previously released singles, Kimi Sae Ireba and Tegotae no nai Ai.

Both of these singles were composed and written by Japanese singer-songwriter Miho Komatsu.

[2] Although they moved from Being Inc. agency, several staff members as Daisuke Ikeda, Hirohito Furui and Akihito Tokunaga continued cooperating with them.

[3] Miho Komatsu covered Tegotae no nai Ai in her album Mirai and Kimi Sae Ireba in Hanano.