Apocalypse ~dirge of swans~ is the first PV in the Epic by order of release - as well as the very first media in the Epic at all. It depicts the story of Chapter 4 and its heroine Hannes Farrugia. The song that goes with it was composed by Zetkbach and the lyrics/vocal are credited to Yu Tokiwa. The VJ is Michael-Keroich. Its first musical appearance was in Beatmania IIDX 13 DistoreD.