Luke Halliday writes:
"High School DxD is many things, subtle is not one of them. It is pretty much what you would expect, a unashamed fan-service heavy harem anime and if that is what you’re looking for, you’ve found a pot of gold here in High School DxD. However if you’re not into this type of anime, this is probably not something you’d be interested in.
The book’s cover matches its content with High School DxD. As far as harem anime go, this one is king. Not only does it feature a great cast of characters, it also features a pretty deep story and mythos that transcends its ecchi elements. If you’ve come to High School DxD expecting some harem fun, you’ve got all that and them some. High School DxD may just be the next big harem anime."