Luna Aysel has loved and cherished Alpha Gerald in their three years of marriage. On the night of their anniversary, she found him in bed with her sister, instead of getting compensated, he mocked her for being barren and unable to give him an heir since their three years of marriage. Alpha Herald denounced her as his mate and sent her out of the pack. Feeling sad and humiliated, Luna Aysel leaves, but later discovers that she was pregnant with his child. She returned to the city after four years with an heir, ready to get revenge and take over her space as his Luna.

Forced into an arranged marriage in order to complete a pack alliance, Serena finds her mate a few weeks before her wedding. Kaden Veylor, her father's sworn enemy. Entangled in a forbidden affair with him after a one night stand that could ruin her life forever. Serena submits to him the contract she worked hard for just to put the situation to finish. Just when she thought that her one-night stand was going to end in that phase, she finds out that he is the cousin to her husband. Thorn between keeping the secret and saving her arranged marriage which has been assigned to her in order to save the pack she'd ruined. She desperately agrees to his terms to be his mistress. Bound to him by not just a contract, but an unending strong bond.