Lena, a border innkeeper, rescued a mortally wounded stranger named "Kael" five years ago. The two fell in love, but he vanished without a trace. Lena gave birth to and raised a pair of twins with royal lion-shifter blood, believing she would never cross paths with "Kael" again. Five years later, Adrian—now the Crown Prince—arrives at the border because of a golden-eyed boy who bears an uncanny resemblance to his own childhood. He discovers that the woman he thought he lost is not only alive, but has given birth to his children. Faced with a struggle for the throne, opposition from nobles, and the conspiracies of five years ago, Adrian resolutely rejects a political betrothal and publicly acknowledges the twins. Overcoming countless obstacles, the family of four joins hands to protect each other and their kingdom.