In a world bound by the eternal vow of The Demon's Oath, Ruiwen and Yaso's bond is tested when a hidden betrayal threatens to unravel their lives and the balance of their realm....

In a world where the veil between worlds is thin, a young woman's life is turned upside down when she discovers she is bound by a demon's oath. As she navigates the treacherous path of betrayal and redemption, she must unravel the mysteries of her past an...