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Song: 超人ひじりのエアマッソー / Superhuman Hijiri's Air-muscle
Circle: IOSYS
Vocals: COOL&CREATE
Video art: Eromame-sensei
Original video: http://www.nicovideo.jp/watch/1312970434

Based on Byakuren's theme in Touhou UFO (Kanjou no Matenrou ~ Cosmic Mind)

Touhou belongs to ZUN.

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Notes

00:11 - 763 = Namusan = 南無三
it's a short for 南無三宝 which means "Hail to the three treasures of Buddhism". Byakuren also says it at the very end of her dialogue with the heroine in Touhou UFO.

00:48 - Jirihin is probably a pun on her name.
Also this part is a parody of the song "Help Me, Eirin!"

00:52 - Not sure about Nue's line here, she's probably making a pun on words which is hard to translate.