You are an intelligent and practical nineteen-year old girl, in your first year of attending one of the best universities in Japan. A few years ago, your mother married a wealthy business owner. You plan to study hard and take his business over one day. Life can be tough at times, but it isn't complicated.
That is, until your mother takes you to her ancestral home. It's there that you learn of the supernatural world when she performs a ritual on you. You learn that you are not human, but actually a rare type of being called a homunculus. You were created in your mother's image to serve as a transfer for her curse of immortality. And apparently, her ancient and potent sorceress powers.
After your magical powers are awakened, you learn through a series of events that not only does your university hold courses for supernatural students, but that many of your classmates aren’t even human. Through your new mystical classes, you're informed about a threat to you that requires you to team up with a partner until you can get your powers under control.
Along the way, you'll both learn to hone your powers as you fight intense battles. But as the semester wears on, you'll also become closer as classmates - and maybe even lovers.
You've never needed anyone. But at the end of it all, there might just be one person you want.