Cheng Jin always thought it was easy to be a god.
Later, when she fell in love with someone, she discovered that living as a god was not easy. There were strict rules to abide by and many things she couldn't do.
So she became a demon.
It's really easy to be a monster.
But she took on a disciple, and it was not easy to be a master.
You have to teach her how to practice, you have to teach her how to behave, you have to help her deal with the aftermath, and you have to be misunderstood by her.
To love her.