Kanpeki na Imouto

Playboy Kaiya never thought much of his coworker Makise, until a series of events led to the night Kaiya was raped by him! Makise turns out to be handsome and sadistic, taunting Kaiya every chance he gets. Now Kaiya can't perform as a top, but he has no intention of becoming a bottom. When a chance visit to an S&M club gives Kaiya a brilliant idea for revenge, how far will he go to teach Makise a lesson?

(Source: Mangafox)