Has anyone watched the documentary "We don't care about music anyway?" It's about obscure japanoise and stuff. Anyway, the other day I found out that one of the bands featured, Umi no yeah!!, took their name from an h-manga with the same name. I thought it was a coincidence at first, the name sounds generic enough, but the front woman always performs in a bikini (just like the female lead in the h-manga) together with two other guys which call themselves her "aids" or some shit (in the h-manga, there are two aids that end up coercing the female lead into having sex with them, threatening to quit as they aren't getting paid).
This isn't stated anywhere, and after the documentary the band kind of slipped off the radar so there's isn't much info about them online, I thought it was interesting at any rate.