Ten minutes before the wedding, Evelin was forced to replace the eldest daughter of the Hawthorne family and marry Adrian, the leader of the most powerful wolf pack in the north. Everyone regarded her as a substitute that could be discarded at any time, but at the wedding, she and the indifferent groom recognized each other's scent of destined companionship. Faced with her husband's suspicion, her stolen identity as heir, and the mad conspiracy sweeping across the seven wolf packs, Evelin no longer waits for anyone to save her. She took off the mask of the anonymous doctor "Nightingale", took back her name, and announced her departure before the engagement expired. With only thirty days left before the lunar eclipse, the wolf king who once refused to recognize her must learn to use respect rather than possession to save love.