Well obviously it's for adults because it's ecchi, naked girls that's all, and those things are not for children. Some people get weird ideas, if it's for adults it doesn't mean that it's going to be like woooohooo babyy.
Defidently, it was once marked as ecchi in mangafox, but got changed later. I don't think that in manga it's going to become like real ecchi, but in ova it can, it's fanservice, ecchi means revealing stuff so ft likes to make their girls look sexy
I heard people saying that, it's because it's ecchi that's why it's for adults, ecchi is not for kids. And people think that there's going to be some "sex scenes" and I can assure you it's not going to be anything like that. There's just going to be alot of revealing stuff such as beach scene, characters are going to be naked and such things are considered for adults.
Hey i don't think it will be any more then this too I was just checking how many people would say that it might be more then ecchi from a simple suggestive comment. /My psychology teacher's methods are starting to rub off on me XD/