Gakupo's version of "The Warrior is a Child" by Twila Paris, made popular by Gary Valenciano. Unfortunately I can't spend so much time tuning Gakupo because of work. Other Vocaloids are not suitable for the music other than Gakupo (I tested it beforehand). Production details can be seen at http://boards.rotbrc.com/miku/res/6023.html