Kasou Ryouiki no Elysion - Volume 2, Prologue - Banquet of The Influential Ones

After dying alone in a mental institution, Fang Junrong discovered that she was the evil mother-in-law in a prominent family doting novel. Her daughter-in-law was the female lead who was loved by all.

In the novel, the female lead was kind and nice, and the male lead loved her so much that he’d die for her in a heartbeat.

Her future father-in-law doted on her and treated her better than his own daughter.

Fang Junrong, the evil mother-in-law, was the only one who didn’t care for her. She had gotten the evil character’s script and wanted to set the female lead up every chance that she got and finally landed herself in the mental institution.

After she was rebirthed and facing her son who wanted her blessings, Fang Junrong tore up the script. Whoever wanted the role of the evil mother-in-law could have it! She was going to get a divorce and take half of the money, then she’d figure out where she wanted to go from there!

Yeho is a distant relative to a king in a small kingdom. Even though he is a distant relative, his house was very poor, and his mother was addicted to gambling. One day North Empire asked for Princess Sooyoung to be a concubine of an old Emperor because she was known for her beauty. But the king really loved his daughter so instead he ordered Yeho’s older sister to disguise as Princess Sooyoung and marry the old Emperor.

Yeho told his sister to run away with her lover, and his sister had to leave her younger brother alone with his mother. After she ran away, Yeho asked his mother to give the things back to the king that she got for trying to sell her daughter, but his mother already used the gifts to pay off her gambling debt. He was trying to give the gifts back to the king to take away his order, but now he can’t do that anymore. He tells his mother to run away, and he disguises as his sister to go to North Empire.

After he got there, he was trying to tell the Emperor the truth and take away his life, but the Emperor went out for few days to look around his empire. When the emperor came back, he wasn’t as old as he thought.

I am Master Siwei, and I speak for arcane arts.
This is an era of heroes and heroines.
This is an era of great changes.
In the end, it will be an arcane era opened by me.

- Description from Novelupdates

"Locke transmigrated into an era where everyone had Battle Beasts. Daemons were rampant and humans were forced to build walls around their dwellings while depending on Beastmasters to keep those monsters at bay.