Artist who made up visual novel-like character sprites of all characters of Idolmaster series, except ten idols of the 765 Production, and distributed these data as freeware materials. These materials are frequently used in Idolmaster videos on NicoNico. Later he started creating his own Idolmaster videos.
If you want to find his materials, try googling "歪 捏造グラ".

Japanese name: 歪(変態壊死) (Yugami [Hentai-Eshi])
Fan-nicknames: 歪さん (Yugami-san) or 歪氏 (Mr.Yugami)
NicoNico nickname: DistortedOne

See also

• NicoNico Douga account: http://www.nicovideo.jp/user/22581
• NicoNico MyList (Idolmaster x Shadow of Rome crossover): http://www.nicovideo.jp/mylist/30487289
• Nicopedia article: http://dic.nicovideo.jp/id/4838347
• NicoNico MyList (Idolmaster x Bullet Witch crossover): http://www.nicovideo.jp/mylist/25780356
• Nicopedia article: http://dic.nicovideo.jp/id/4686356
• NicoNico MyList (the other stuff): http://www.nicovideo.jp/mylist/28118163
• NicoNico Seiga images: http://seiga.nicovideo.jp/user/illust/22581?target=illust_all
• Nicopedia artlce: http://dic.nicovideo.jp/id/4203484
• Nicopedia userpage: http://dic.nicovideo.jp/u/22581