First, warning. The video is NSFW.
It is Japanese. It is anime style. It is crazy. Once you get past all that though, this music video is amazing. The art is beautiful and the animation is gorgeous. Later on I learned that the video is designed and directed by Hibiki Yoshizaki, who worked on Evangelion: 3.0 You Can (Not) Redo, and the animation director is Syuichi Iseki, from Kill la Kill. I can see their influences and am loving it all the more.
Just as interesting, if not more, is how people are speculating how the video is a critique on otaku culture and how it is "killing" people and society. Otaku, for those who don't know, are fanatics, and generically refer to anime/manga fanatics and have a negative connotation due to the stereotype being middle aged men who have no social life, wishes to live in the 2D world, and the only time they are outside of their rooms from watching anime, porn, and whatnot, are to spend their time in Akihabara to spend more insane amounts of money to buy posters, dvds, figurines, body pillows, etc., to fill their room up with.