The special album was released on November 21, 2016 under Jellyfish Entertainment, supported by a music video and a new song.

[8][9] Zelos was the first album in the trilogy, it had three tracks including the title track "Dynamite" (Korean: 다이너마이트) and it was based upon the Greek God of Zelos; the Greek God of Jealousy and Rivalry.

[21][22][23] On November 14, VIXX revealed that the special album titled VIXX 2016 CONCEPTION KER (Κήρ) will consist of two discs (CD and DVD), a 92-page 2016 Conception commentary book and 92 page photo book, random poster and bookmark shaped like a key in a special box that doubles as a collectors box for the original trilogy albums Zelos, Hades and Kratos.

[24] On November 15, it was announced that the title song of the special album would be called “Milky Way” which was written by VIXX members Ravi and Hyuk and composed and arranged by Justin Reinstein.

The accompanying music video for “Milky Way” was filmed on the 13th of November, it features scenes of 600 fans from VIXX's Official Fanclub ST★RLIGHT at KINTEX in Ilsan, Gyeonggi Province.