My late grandmother once told me that people in this world are souls who have gone through reincarnation. The gods, demons and ghosts in the world are quietly watching this grudge and resentment, which turns over and over again, in the dark, and are not allowed to interfere.
But these gods and monsters are also mortals who cannot be reincarnated due to obsession...
The heroine has a slow personality and likes to complain at heart? The eighth mother-in-law loves to act coquettishly, but the hero is delicate and affectionate at heart.
Concept: Does the greatest love require letting go?