I Became the First Prince: Legend of Sword's Song - Chapter 126

Intellectual Villages are old fashioned rural villages recreated with cutting edge technology. Those villages attract the Japanese monsters known as Youkai.

The high school boy Jinnai Shinobu lives in one of those villages and has a Zashiki Warashi living in his house. He tends to run across Youkai with unnerving frequency and this often leads to trouble for him.

On a dark and windy night, he picked up a beautiful, charming, sexy and enchanting beauty, and his life was filled with ups and downs...

Kerrigan’s life was never his own. Raised as a pawn in a twisted game, his mind was shattered in a cruel simulation. Now, in the real world, he’s left with only one thing: Veilbreaker—a power to tear through lies, illusions, and hidden truths. But the more he uses it, the more it eats away at his sanity.Haunted by his past, betrayed by those he should trust, Kerrigan must fight not only the monsters that hunt him but the darkness inside himself. Every ally could be an enemy, and every truth could cost him everything. As a deadly war brews on the horizon, Kerrigan is the only one who can stop it—but the price for victory might just be his mind.Can Kerrigan control his power, or will the truth break him 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