Music by KillerBlood . https://soundcloud.com/killerbloodIllustration by kinono . http://kinonote.blogspot.comw=f(c), just like y=f(x). To this music, I hope it means "The Choice you make can always move the World".After talk(中國語):http://killerblooda.blogspot.tw/2014/07/wfc.htmlhttp://killerblooda.blogspot.tw/2014/08/wfc.html7:17.171