Hatsune Miku
In 2010 after "Hatsune Miku Append" was released for Hatsune Miku, "Kagamine Rin &amp; Len Append" was released for Rin &amp; Len. Rin's appends are "Power," "Warm," and "Sweet" while Len's appends are "Power," "Cold," and "Serious."