i just finished watching the series, and wanted to share this anime with you...
its about a boy who lives in this world, where virgins have ears and tails! Ritsuke is a confused boy who was traumatized by the death of his older and protective brother; when transfered to a new school, where he made some new friends, he also meet a guy who cliams to be his late brothers friend, however, Ritsuke comes to learn that Soba, was his brother's fighter and that his brother was killed by an organization which continiously sends assassins to kill ritsuke and Soba.