Our main character will do anything to get her sister back. As a chess grandmaster, she finally gets an invitation to the once-in-a-lifetime chess competition in the fae world, and the winner can ask for one wish.

Winning is not that easy as darkness lurks around every corner, and the competitors are cutthroat. To have a chance at getting her sister back, she forms an alliance with her long-time rival. One wrong move, however, and she may lose her life.