When Karina Yoo enters the Kim family through an arranged engagement, she steps into a world of wealth, power-and secrets. The household holds a single unspoken rule: never open the basement door. But curiosity is a dangerous thing. As Karina begins to unravel the truth buried within the mansion's walls, she realizes that some doors, once opened, can never be closed again. And in the shadows of the Kim family's legacy, something-or someone-is waiting to be found? winrina! Trigger warning⚠️: It's very matured and more on abusive!

Winter Kim, an undefeated boxing champion, is dragged into the dangerous world of underground fighting, only to discover she's been the obsession of Karina Yoo, the enigmatic mastermind controlling it all. But as power clashes with desire and secrets unravel, their game of dominance turns into something far more dangerous-and far more personal.