UST: 買い_30Vocal: 蒼世カイOfficial: https://m.youtube.com/watch?v=19q4SFO8xrM&pp=ygUV5oCd6ICD44Ki44Oz44Ot44OD44Kv0gcJCfwAo7VqN5tD
http://www.nicovideo.jp/watch/sm45247147
