Modern patient Seraphina Fairchild transmigrates into a Tragedy Fic. Bound to a 'Love is Life' System, her mission: transform a tragic love story into sweet romance and survive by matchmaking supporting characters. She takes her sister's place, marrying Prime Minister Xavier Vaughn, 'The Living Reaper.' They fall deeply in love. She heals Xavier Vaughn's trauma and launches her matchmaking business. She ensures everyone finds happiness, achieving success in career and love.