Here is the English translation:
To save her sister, an ordinary girl named Ella is forced into a substitute marriage with Lucian, the Alpha of the Ice Wolf Clan. Upon entering the pack, she is met with disdain and dismissed as a worthless "human plaything." However, the gears of fate quietly turn as Ella's dormant ancient Fire Wolf Luna bloodline awakens. She transforms into the fated one, the only person in the world capable of wielding both ice and fire.
Their marriage, filled with tests and power struggles, witnesses a drastic shift in their relationship. From the initial coldness and detachment of their contract to countless ambiguous moments teetering on the edge of losing control, Lucian eventually sheds his Alpha pride to offer her a passionate and sincere confession. The ultimate clash of ice and fire not only forges unmatched absolute power but also melts their guarded hearts, allowing them to completely surrender to each other amidst the intertwining of flames and frost.