VK is goth with cool haircuts. Emos suck and can gtfo regarding the genre. It shouldn't be considered to be connected whatsoever. Emo is bad for you while VK is good in anyway. Emo is connected with cuts, complains and dissapointment while VK is connected with good music, cool hair and originality.
However Oshare Kei isnt too much connected with the Goth/Emo scene at all, but more Japan Street style / Punk thingy.
