108 Years ago, there was a war between immortals and demons, and all life was in ruins.
The way of heaven is ruthless, but it gives rise to love.
So the twins were sent down, one to the heaven and the other to the demon realm.
This is Heaven's plan to save the common people.
But Heaven missed one thing——
They fell in love.
Everyone knows that God rewards those who work hard, but who knows that God will be sad?
Mission: God rewards those who work hard