デビルズポルノ

As he enjoys the days of his normal youth, Touji Kiyoteru starts living at the house of his late grandmother, who had mysterious powers. Then, among the mess inside, he finds a blood pact that this grandmother used to summon a demon familiar! All of a sudden, a butt naked demon appears and says he's hungry. As he starts sucking mana out, Kiyoteru gets horny...?! Wait... why am I getting turned on by this demon?! This demon's seducing me with his naked body, and I can't control myself! Why is it that whenever I see him, I want to tease him?! Grr... I'm going to fill you up with my mana! Kiyoteru is a super sadist, while the demon is a super masochist... don't miss this super-erotic, magical BL series! (Source: Renta!)