At Hogwarts, Y/N knife is known as the nickname “Butter Knife,” a quiet, soft-spoken girl who blends into the background and is seen as harmless by everyone around her. But secretly, she lives a double life as “viper,” a hidden dealer operating in the shadows. Mattheo Riddle passes her contact to Draco Malfoy, everything changes. Draco begins meeting viper under strict, anonymous conditions, never knowing her identity as they connect through secrecy and guarded conversations. As their encounters continue, the professional distance between them slowly turns into something deeper. Unaware that the mysterious figure he’s falling for is the same “Butter Knife” he overlooks in daylight, Draco is drawn into a relationship built on secrets, tension, and hidden truths—one that risks collapsing the moment reality catches up.