The reader is a member of ORC, but he has no clue of the rest of the club actually being Devils using the club as cover. He notices how hes almost always left out of everything the others do, and he believes that it's because they dont see him as a valuable member. So he wishes to prove himself, by summoning a Demon.

He finds a book in the Club house and follows the instructions to a "T". When the Circle is made, he cuts his hand and let's blood drip from it and onto the circle, triggering a crimson and gold glow, which then turned pink. A body appeared to rise from the circle, and when the light faded, a woman with pink hair and Ram Horns stood there, eyes closed, completely naked. She opened her eyes to reveal beautiful blue eyes.

The Demon smiles at the reader and says, "hello master, thank you for bringing me to life". A Demon is a being born from the blood of a full blooded human born from a Supernatural creature, which is about 1% of individuals born from a human and supernatural being. It is also a forbidden act to summon one, the punishment for doing so is death. But of course humans wouldn't know that, now would they?

Rias soon notices a particular book is missing, a book she was aware was forbidden to read, so she goes on a frenzy to find it, but soon realizes it's not in the Club House. She then remembers how the reader had left with something tucked under his arm, and realizes he took the book. So she rushes to the Reader house, Akeno and Kiba in tow, as they were helping her look in the first place. When she arrived, she busted the door down and rushed into the living room, where stood the Reader and the unnamed Demon. She proceeded to faint, realizing the Reader would be punished with death, all because she was the one that let him join, and didnt pay attention to how much he wanted to participate in some occult activity.

Moments later, another red circle formed, and out walked Sirzech, to find who had summoned a Demon, and he finds his sister on the ground, unconscious, which made his emotions flare because of his siscon nature. He spots the reader and instantly puts two and two together and grabs him by the neck and slammed him into the wall, but before he could do anything else, Akeno comes up and stops him from proceeding, telling him that the reader didnt do anything to Rias, but before he could reply, she also told him that The reader is apart of the ORC and was not aware of the forbidden nature of Summoning a Demon, or that any of them were Devils. Before he could release the reader, The unnamed Demon grabbed his wrist and Judo flipped him away from her master.