Although the hero and heroine shared a deep affection, they are compelled apart due to the breast cancer. Despite their efforts to suppress their emotions, they still experience profound sadness when witnessing others stand beside their beloved one. Actually, the cancer is merely a fabricated scheme. The man, a soldier frequently engaged in covert operations, is bound by his father's command to marry another woman as his wife. Consequently, he reluctantly severs their love in order to protect the woman from potential danger.