Osamuraisan (おさむらいさん) is Japanese fingerstyle guitar prodigy and also nico nico douga musician. He arranges his own pieces and covers vocaloid songs. His first Major Album "Kaeshiuta" was released on 30th November 2011 . "Kaeshiuta" means Ode in reply. The first album featuring vocaloid tracks. Youtube Account: http://www.youtube.com/user/niconicosamurai0320/featured Official Website http://www.osamuraisan.com