Radiant

Mary is part Vietnamese. Carter is a complete jerk. Normally, they don't talk much, but when Mary's in an accident on the way to school one morning, Carter nearly dies saving her life. The doctors say his chances of living are slim, and Mary's feeling the full weight of survivor's guilt. However, Carter's back at school in a matter of days, as if nothing had happened. Although, he is a little "glitchy," and he's developed a sudden and intense interest in Mary. She thinks he's suffering from major brain trauma from the accident. Or that he's been possessed. As it so happens, Carter really is possessed. And the thing controlling him is having the time of its life learning to be human