https://live.nicovideo.jp/watch/lv339172080 の切り抜き大会概要 https://docs.google.com/document/d/1qPmh9BVlkJaKWRIxkMp_XIt1yo-Nl9-9Ho9m1vvlwBc/edit#heading=h.2gazcsgmxkub
http://www.nicovideo.jp/watch/sm41374532
