"Renai Circulation" (Bakemonogatari) with the vocals of "Marukaite Chikyuu" (Axis Powers Hetalia).
Yeah, I got lazy when editing the video. This is just a draft of the song, anyway.
The original idea of this mix is not mine. It comes from this:http://www.nicovideo.jp/watch/nm9974258
Praise the god who made that.
That one is shorter so I'm working on an "extended" version. This one still has some gaps - I'm thinking about adding some quotes from the anime / mini dramas / character songs.