Seo Jaeha, a man known for his intensity, unexpectedly re-enters the life of a woman he once loved. Their past relationship, marked by both passionate love and a bitter, painful end, casts a long shadow. Despite her attempts to move on, she finds herself drawn back to him, reigniting old emotions and creating a volatile dynamic. The encounter, filled with both longing and resentment, leaves her uncertain about the future of their relationship.