右耳→ sm42045639 左耳→ https://www.youtube.com/watch?v=zh-4M5blbiI
http://www.nicovideo.jp/watch/sm44015743
![☆NAI NAI DANCE☆ [Kajitsu Arrange] 比較](https://nicovideo.cdn.nimg.jp/thumbnails/44015743/44015743.38763999)