Despite the cover, I think I would be disappointed if I read this as an ecchi. I think it's funny enough so far, maybe a bit of a slow start, but I'm liking it more and more. I'm a little confused by the mistaken identity part tho, is she being dishonest or does the other girl just refuse to believe her. What did she break at end of chapter 5, the suit of armor? with a wooden sign?!