Snuff

Snuff is a content-classification tag for fictional stories in which a character's death occurs during or as part of a sexual scenario. It sits at the darkest end of hentai's trope spectrum and is used strictly as a narrative label rather than an endorsement of real violence, letting readers who want to avoid this content filter it out and those seeking it locate it. It's a niche category compared to most tags on the site. Snuff hentai doujinshi are tagged clearly within Top Hentai's library for this reason.