本家様→ https://www.youtube.com/watch?v=9xbT8OZcDJQvo.mix: ろか https://twitter.com/rokamix_
http://www.nicovideo.jp/watch/sm43728081
![Dec./ろか[歌ってみた]](https://nicovideo.cdn.nimg.jp/thumbnails/43728081/43728081.44479167)