A single piece of candy handed over by a beggar. In that moment, the souls of two friends, Luna and Han byeol, are swapped. At the same time, they fall in love with the same person. The once-perfect relationship between Luna, Han-byeol, and Wooju faces a crack, and their emotions begin to cross paths. Is it a prank of God, or a gift? Does love follow the body, or the heart?
