Always pushed aside—by her family in favor of her younger brother, and by her fiancé in favor of his childhood friend—Lady Sylvia has spent her life as an afterthought. But when her fiancé betrays her, she makes a vow: “I refuse to be put last anymore. From now on, I’ll put myself first!”

Not long after, she rescues Lion, a hidden child of royalty, and her destiny takes an unexpected turn. Her talents catch the eye of Willhart—the emperor’s younger brother and infamous “Battle-Maniac”—who appoints her as Lion’s caretaker within the imperial court.

For the first time, Sylvia begins to live days where she is truly needed, leaving her both confused and hesitant. Yet even the cold and ruthless Willhart cannot hide the burning, possessive gaze he directs at her alone…!