Rin is a charming and youthful female character, whose trademarks are her blond hair with a huge white ribbon, blue eyes and a school uniform-like outfit. Rin was released in one package with Len, her male counterpart, in the software “VOCALOID2 Kagamine Rin & Len” on December 27th, 2007. Rin can be a troublemaker and argues alot with her introverted brother Kagamine len.