Jin (Shizen no Teki-P)'s incredibly popular vocaloid song series (sung by IA and Hatsune Miku) with PVs done mainly by Sidu and Wannyanpu. 
 
This entry encompasses the official music videos published on the Mekakucity Days DVD release. 
 
Included five videos are: 
1. Kagerou Daze (カゲロウデイズ) original web release September 30, 2011. 
2. Headphone Actor (ヘッドフォンアクター) original web release December 15, 2011. 
3. Kuusou Forest (空想フォレスト) original web release February 1, 2012. 
4. Konoha no Sekai Jijou (コノハの世界事情) original web release March 30, 2012. 
5. Toumei Answer (透明アンサー) this was a DVD-exclusive MV.