For nearly three years, Y/N and Dante Gaunt have lived by one simple rule: keep it casual. They drift in and out of each other’s lives, hooking up whenever the timing feels right and walking away the moment emotions threaten to complicate things. It’s a cycle that works—until Dante starts dating Nyx Rosier without ever mentioning his history with Y/N. Determined to stay out of their relationship, Y/N tries to move on, but an unexpected encounter with Marvolo Riddle changes everything. Cocky, infuriating, and infamous for never committing to anyone, Marvolo proposes an arrangement with one condition: no feelings, no promises, no questions asked. Behind closed doors, they can’t keep their hands off each other. In public, they argue like they always have. As months pass, the line between desire and something deeper begins to blur. While Y/N struggles with feelings she never meant to catch, Marvolo insists to himself that what they have is nothing more than physical—even as jealousy and possessiveness creep in. Caught between old history, hidden secrets, and emotions neither of them wants to admit, Y/N and Marvolo discover that the easiest promises to make are often the hardest to keep.