Koroshi Ai, also known as Love of Kill, is a romantic thriller anime series that follows the story of two professional assassins, Chateau Dankworth and Ryang-Ha Song. Their paths cross when Ryang-Ha becomes intrigued by Chateau and starts pursuing her, leading to a complex relationship filled with action, suspense, and unexpected twists. The series explores themes of love, identity, and redemption amidst a backdrop of deadly missions and secrets.