Hen wiki:
anga">manga (commonly called hentai by non-Japanese) which was the first work created by manga artist Hiroya Oku, who is best known for GANTZ. HEN is a story about a man becoming a woman. Hiroya spent countless hours working on HEN. After HEN's production, many H artists and dÅjinshi used "tit-motion trails", which were common in HEN. "Tit-motion trails" (or whatever name Hiroya calls them) were blurs that would show the movement of breasts. Hiroya jokes about this in some of the GANTZ volumes.
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