The male protagonist and the female protagonist died at the same time in different parallel universes. When they died, they were thinking about the person they loved most in their lives, which aroused the resonance of God and gave them two years to exchange souls with their favorite person in the parallel universe. The male and female protagonists of the two parallel universes started a love affair in the parallel universe.
Intention: Don't be too greedy even if you meet someone you love very much.