It focuses on the forbidden romance between an orphaned assassin named Jari and her target's daughter, Nanfah, blending action and espionage with a love story between women. Jari, a poor orphan turned assassin, was raised to serve the powerful Jitkritchanachaiya family. Sent to spy on heir Eriya Wong, she meets his daughter Nanfah, whose warmth stirs emotions she’s never known. As she uncovers family secrets and connects with Eriya’s hidden son Book, Jari begins to question her mission, her past, and the life she truly wants.