If you are into a romantic harem storyline, this book is the 1, with the element of fantasy and beautiful artwork. This manga, although the story is not so deep, but yet have a meaningful thoughts in it, as a portrait about the some racial aspect about Human and Oni being. but as a bishounen lovers i definitely love this manga. Light storyline, outstanding artwork, plenty bishounen, harem quality story, this manga has it all.. ^^