Boccher

虹夏ちゃんのドラッムストア【音MAD】 YouTube video by アバゴーラ君

As far as I’m aware, this is the original video and creator. There’s a video link to niconico but it seems to have been removed.
youtu.be/gilOqzPUbxA?...

You’re insanely dedicated. Completely understandable tho, it’s such an awesome video.

Still one of the best Nijika videos out there