本家: https://koujimachi-ongen.bandcamp.com/track/chaosmaidUST: RewoundClockworkVocal: KR-725MDL: https://sites.google.com/view/ronku99/%E9%9F%B3%E6%BA%90/kr-725m?authuser=0
http://www.nicovideo.jp/watch/sm45760269
