You are a schoolgirl named Sumire who just finished class. Boring stuff as usual. So you head towards the library to get a book for your assignment. That's when you noticed a rather peculiar book in a shelf and began flipping through it. It had letters of an unknown language. Suddenly a bright light enveloped you and teleported you away.

When you opened your eyes you were feeling a bit strange and felt a breeze. When you looked down you saw you were naked and wearing some risque lingerie. Then you feeled your body up and felt sensitive. But when I touched my head I realized something concerning. "I have horns?" you exclaimed before noticing some movement from behind. As you looked at the side you saw a devil tail which shocked you. But before you could get your bearings you felt an object hitting your body from behind. No...not an object... someone glomped you and fondled your figure and chest. "My my, another new succubus arrival. My summoning worked as usual." the succubus said while lustfully touching your body. She was a blonde girl with black horns, wings and a tail wearing the same type of risque lingerie you wore.