Oh boy, this is a tough one. As many people have noted prior, this story has an issue with drawing suggestive art of minors. Nudity itself doesn't have to be problematic, but the feelings it invokes is anything but innocent, especially since it's not a one-time thing. However, if you can stomach that, an interesting and unique story awaits, with a meticulous and beautifully crafted world and inhabitants. The suggestive art is one of the biggest score detractors, personally. There are also some character plots that feel unresolved or missing, but the series isn't concluded yet, so that is subject to change. It's basically the anime version of:"Roadside Picnic"