The favourite concubine of the emperor isn't a girl but a boy, a castrated boy more beautiful than any girl, woman or man, but this boy is nothing less than the royal Prince from a neighboring fallen kingdom and he's here being ravished night after night for two reasons: he's never felt such pleasure before with other men and to seek revenge for the murdered of his father.
I liked this story. I mean, yes, is perturbing that the protagonist is a child and that he has to go through all that but, he does it with a goal in mind. The plot is really good: how he got to be exactly where he wanted. And with everything that happened to him on the way, he was really composed about it, and smart. And more than anything, I liked the end. He achieving his objective without double thinking. For a moment I thought that maybe he'll go all softhearted but no. It's a really well done work.
Enka - Zetsurin Ou to Yokubou Ouji