MTL - My Hi-tech Library - Chapter 67 gambling treaty

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

Chu Nan was just an ordinary student, but because of an accident, he obtained the data collection, analysis and processing ability equivalent to the most advanced optical brain.

Qiao Qingyu found herself transported into a period novel, becoming He Xiu Yu's dreadful ex-wife.She's the worst of them all—lazy, dumb, and wicked.She serves as a foil whose sole purpose is to advance the plot, a tool for slapstick comedy, and a contrast to highlight the intelligence and kindness of the female lead.Everyone is eagerly waiting for her to exit the stage.Faced with dangers ahead and behind, Qiao Qingyu isn't bothered at all. After all, she possesses a seed laboratory.The joy of having a golden finger is beyond your wildest imaginings!

I was the one who boosted your rank. Yet you stabbed me in the back? Fine. Goodbye. I’m taking it back. You’re finished now. Thanks to you, I now have an abundance of skill points for a prosperous hunter life. But… after spending some of those points, the S-Rank is starting to get obsessed with me…?