On August 1, Cross Gene released the digital single "Dirty Pop", followed by a special photobook CD, With U. The photobook was a limited release that was not made available outside of concert venues until late 2014.
Pada tanggal 1 Agustus, Cross Gene merilis single digital "Dirty Pop", diikuti oleh CD photobook khusus, With U. The photobook adalah rilis terbatas yang tidak tersedia di luar tempat konser sampai akhir 2014.