Hiroyuki

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A Japanese mangaka. He is notable for the creation of the four-panel comic strip manga Dōjin Work, which is the first of his works to be adapted into an anime. Hiroyuki is well-known for the creation of many doujinshi based on the Type-Moon visual novels Tsukihime and Fate/stay night. He has won online fame due to his Tsukihime doujins about Len.

His older sister, Kouji Megumi, is also a manga artist.