"Day Dream Night" is an original song by Shinjou-P. It is a folk-style song that features KAITO both as the main vocal and for the harmonies. Part of the lyrics uses made up language which has no definite meaning and is very common in general folk songs. This song is featured on Shinjou-P's single with the same name, and on the BinaryMixx Records compilation VOCALOID from ニコニコ動画 ボカロ超特急 SUPER EXPRESS COMPILATION 01.