★冬の侵略⇒ https://www.youtube.com/watch?v=J7RDEmKk0EU (本編)◆花京院ちえり⇒ https://www.youtube.com/channel/UCP9ZgeIJ3Ri9En69R0kJc9Q (チャンネル)◇七星みりり⇒ https://www.youtube.com/channel/UCSlcMof1GIPvH6H_VcknCbQ (チャンネル)
http://www.nicovideo.jp/watch/sm40421612