[quote=@Nytem4re]
Is this video also supposed to have some deep psychological meaning I won't get till someone reads it out to me
[/quote]

Let me have a crack at it.

This is a continuity video related to Me!Me!Me! So take that into account for this theory. The girl depicted is the eponymous "Meme" from the previous video, albeit we now see her from her "real" perspective. In this instance she comes across as a merely bored and unfulfilled highschool girl, who escapes into fantasy and imagination to get away from her frankly boring and repetitive life (escapism is a central theme here, as it is a prevalent theory of the boy from Me!Me!Me! As well).

That was that the first half is for. The second half begins with the apparent destruction of the girls "dream world" by introducing the man with the horse. Her knight in shining armor, the one who can make her dreams come true. Make that as you will. This turns Meme into the scantily clad magical idol of this video and the previous video, though in actuality she's merely a sex icon, one that both lures other girls into joining her (turning them into her flowers) and break the spirit of men (that trippy scene where the dude tears himself apart). But for the most part, Meme doesn't gain any enjoyment as her expression decipts. This isn't the fantasy she wants, merely the one she caters towards. She apathetic towards the feelings of other even those who rely and look up to her. She is still unfulfilled and bored.

The third part is short but conveys the final part of the video. The return of Hana and Shu (pink haired girl and big from the last video, respectively) they both fall scheme to Meme's thing; Hana joins Meme in the hopes of having and exciting life like her, and Shuffling becomes enraptured by her fantasies. However Meme knows the two personally and sees first hand just what she did to them, retrospectively at least. Shu gets addicted to the same fantasies and escapism, becoming the Otaku we all know. Hana joins Meme organization, whatever it is, becoming quite successful... but it tears the two apart, and Meme watches with regret that she tore away two happy people because she was just trying to find something meaningful in her life.