MTL - Scriptures of the Great Emperor - Chapter 37 Cat knife test

The young lord of a small and weak country saves a dragon beside the sea one day.

Some say he is the bad apple in a basket, that he’s rotting everything around him with disgrace and corruption.

Some say he is the biggest scum of the South Zhanbu Continent, that he’s colluding with the dark sects to cheat, steal, and commit all manner of atrocities.

Some say he is the most wanted playboy. “Lock your daughters at home to keep Fang Xing away!”

To all of those people, “That’s right, I am that big rotten apple. Any problem with that?”

This brand of anti-hero is a young orphan with poor prospects and nothing more than the keepsakes of his uncles. He plots, schemes, and orchestrates all manner of villainy in his quest for power and revenge, unafraid to live precariously and make enemies out of those he really should not.

- Description from Novelupdates

“Kill them all - every last member of House Grim must die tonight!”That was the last thing Renard heard before his world turned to ash. One night was all it took for him to lose everything - his family slaughtered, his home burned to ashes, all because the other Great Houses branded them traitors.They thought they wiped a noble line. Instead, they created a monster.Rising from the despair of losing everything, Renard became the beast Sovereign. He embraced the darkness and rose to the position of the 7th commander of the dreaded demon army.Leading an army of Demons and monsters, he brought three legendary Heroes to their knees and crushed four Great Houses to dust. But just as revenge was within his grasp, the champion of Humanity - Klean Weaver's holy sword pierced his heart.Renard thought that was the end.But something impossible happened.He woke up in the past, in a time when his family still lived and House Grim stood strong among the Eight Great HousesA second chance!A chance to change everything.That wasn’t all.For unknown reasons, he inherited the Legacy of the Devourer, a power that lets him consume the strength of his enemies.Was it a curse? Or a blessing? He didn’t know. But for Renard, it is simply a tool to protect what's his.The Lords of the Great Houses think they're untouchable in their high castles. They have no idea what's coming.This time, the Beast of House Grim hunts first!!

Su Ran, a music prodigy, woke up transmigrated into a book.

At that point in time, the main story arc in the book had already been completed. As a villainess female supporting character, not only did she need to take over the original owner’s pitiful life in poverty, she also gained an instant son right at his rebellious period.

Ten or so more years from then, the son would turn into a twisted, evil villain. He would appear in one of the extra chapters to pick on the male and female lead’s children.

***

Su Ran: Son, you shouldn’t be too outstanding.
Su Han: Why not?
Su Ran: ’cause you will be killed.

Su Ran: Son, would you like to learn music from me and become a zen, little fairy boy who only needs to drink dew.
Su Han: No, I want to go into business so I can support you.

- Description from Novelupdates