"I just want to live with you, Sieg, the one who saw me for who I am..." Lily’s life is shattered when, during a grand ball, her engagement with the prince is abruptly broken, and an unknown assailant ends her life. But upon her death, she finds herself back to the day before the ball. Determined to change her fate, Lily joins forces with a mysterious man named Sieg to investigate a dark conspiracy—only to die once again as they close in on the truth, and once more return to the day before the ball. Caught in this relentless cycle of death, Lily and Sieg must unravel the mystery and find a way to break free. Their fight to escape the loop, and to protect their love, begins now!