Concrete Coffee

Concrete Coffee is a song sung by Len Kagamine, Kaito Fuga, Gumi Megpoid, and Miku Hatsune. It is the two-hundred-and-fifty-sixth track, the two-hundred-and-fifty-seventh track, the two-hundred-and-fifty-eighth track, and the two-hundred-and-fifty-ninth track in Other Vocaloid Songs 53: Making A Comeback.