Impoverished art student Luca, needing to raise money for his mother's medical expenses, makes a deal with Theodore, the closeted gay school bully. He agrees to wear a collar and act as Theodore's decoy partner to avert suspicion. Theodore, outwardly cold and intimidating, is fiercely possessive. He secretly resolves Luca's bullying problems and covers his mother's medical bills. Amidst their push-and-pull dynamic, feelings develop between them. Theodore is later punished by his family for their relationship. When his old mansion catches fire, Luca bravely risks his life, rushing into the blaze to rescue the severely injured Theodore. After enduring family opposition and rivals' schemes, the proud Theodore sheds all his arrogance and voluntarily places the collar around his own neck. The two completely open up to each other and pledge to stay together.