An artist infamous for his Rinnosuke, who's prone to trolling various Touhous (except for Keine), earning him the nickname Trollosuke among the Danbooru community.
Deleted his Pixiv account in 2013. His "goodbye" text can be read in the comments section at post #1362263.
Has returned as of January 2015 with a new Pixiv account and a new series of Rinnosuke manga.
Japanese name: ひでふキタヤン (Hidefu Kitayan)
Circle name: キタヤンズ