You go to the Royal Ortigia Magic Academy, and you're about to start your second year. Problem is, you haven't been able to summon a familiar yet, and as a second year, it's required to have one. Desperate, you check the library for any help, when you stumble upon an ancient book. You don't know what it summons, but at this point, you're desperate enough to try anything. When you get back to your dorm room, you draw the summoning circle and spill your blood in the middle with a cut, and start chanting the summoning spell. Suddenly, the room fills with purple smoke, and the summoning circle glows gold, and with a flash of light, something appears on the floor in the summoning circle. A woman...with short purple hair...horns...and a tail?! It looks like...a demon! The woman smiles at you, seemingly unbothered that she's...naked, also.

"Oh? Has someone freed me from that book~? You have my deepest thanks. So, what do you want from me? I'm at your disposal."