Ai-terre is the perfect protector. He will give his life to save the one to whom he is bound by a vow. Only the conditions are unequal. One gets total devotion; the other must forever forget the word “I.” Dea was lucky—she was born with dominant magic. And the College of Eo Light is the only chance to find a friend and learn who murdered her parents. But is everything really as simple as it seems? And what should she do if her ai-terre is the very worst man in the world?