What would a female hentai protagonist be like?
She'd be a woman.
That girl from 177013/Metamorphosis. Absolute peak of a female hentai protagonistAlso most hentai have female protagonists, it may not be explicitly saif but the real star of the story and the one who gets characterized the most is always the girl except for yk yaoi and a couple genres like NTR (girl takes a side role to serve as merely a narrative tool to showcase the relationship between 2 man who are the actual protagonists) where the main focus aint really on the girl