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1.
Doujinshi that are of the hentai variety (explicit content). Doujinshi are self-published manga, usually done by fans or amateur mangaka depicting popular anime characters. H-doujin are ones with explicit content.
Kagami: Say Kona-chan, have you watched Elfen Lied?
Konata: What a disappointing show. At least it was worth it for the h-doujin than came afterwards.
by only my toothbrush August 12, 2011