【VY2+初音ミクV4X】 はいよろこんで 【VOCALOID4カバー】

Had this cover on draft for 2 weeks, and only made the drawing and PV just now. I always wanted to make something with yuumiku since they're criminally underrated (as a ship and duo overrall). So now there's 3 hai yorokonde covers that I know of.UST by Grayslate (mb I spelled it as grey in the video instead of gray) https://m.youtube.com/watch?v=lBCceTrDPFM Song originally by Kocchi no Kento

http://www.nicovideo.jp/watch/sm46076068