I can understand The Girl and EJ being on the list. The Girl's body may be adult, but her face is very youthful. In fact, she reminds me of the "Disney princesses." (Belle, Ariel, etc.) And EJ looks like she's about 14 years old to me.

But Miki? She doesn't look underage to me at all. Perhaps it's the general neotony of Asians? Back in the '60s, there were frequent reports of "child soldiers" in Vietnam, who when tracked down, turned out be adults as old as 40. Americans just could not accurately judge the age of Asians.

Though it doesn't explain why Miki is on the list, and Koji isn't.

Personally, I'm surprised they don't go DAZ's route, and not show any "naughty bits." It would be a lot easier. And it doesn't seem to be hurting DAZ's sales any.