The overarching twist reveals that Park Do-kyung’s premonitions are not psychic powers, but memories surfacing from his own consciousness as he lies dying in the street after being struck by a hit-and-run driver. In that impending fatal moment, his single overwhelming regret was that he suppressed his love for Oh Hae-young due to cowardice and pride.
Armed with this realization, Do-kyung abandons emotional calculations. When the fateful accident arrives in Episode 18, Han Tae-jin—having recognized that Do-kyung saved him from financial suicide earlier—chooses not to strike Do-kyung. Instead, Do-kyung is hit by Tae-jin's former vengeful investor. Because Do-kyung lived honestly and Hae-young rushes to his side, his will to survive triumphs; he survives surgery, breaking the fatal cycle and culminating in a vibrant neighborhood wedding.