My Civil Servant Life Reborn in the Strange World - Chapter 327.

At eighteen years old, Lin Qingyu was married as part of a Chong Xi into the Nan’an Hou Mansion, becoming the ill Lu Wancheng’s male wife.

On the eve of their wedding, Young Master Hou lay lazily on the bed and said, “Beauty, to be honest, I really don’t want to engage in domestic struggles. I just want to drift along, eat and wait to die. I want to be a salted fish.”

A year later, Young Master Hou became gravely ill. He took Lin Qingyu’s hand and sighed, “Wife, I’m going to die, but I think I can continue to transmigrate. In order for you to properly recognize me in the future, let us set a secret code.”

After the death of Young Master Hou, Lin Qingyu was prepared to stay a widow all his life. Unexpectedly, after only half a year, the great general who had rendered outstanding military service, actually came to propose marriage.

Lin Qingyu would rather die. But the general said but one statement, “If odd, change; if even, remain the same?”

Lin Qingyu: “…I will marry you.”

After two years, the general died in battle. Before Lin Qingyu even had time to grieve, he was recruited into the palace by the Emperor.

The emperor complained aggrievedly, “Baobei, this time I have became the Emperor. My salted fish dreams have been completely shattered…”

Lin Qingyu knew that although his husband was a bag of lazybones, no one was his equal when it came to conspiracy and schemes.

He rubbed the Emperor’s head. “Don’t think about it. Get started on those reports. Behave yourself.”

On a certain day, a certain thought came to Japan’s Sun Goddess. ——Aren’t there too many Japanese people being abducted to other worlds? It’s true that the large majority of Japanese are diligent and docile and soft-hearted, which makes them pretty much the best people to ask for favors. “But recently it’s just gotten way too out of hand…… Oh, I’ve got it! Whenever a Japanese person is summoned, I just have to summon an otherworlder!” And now, every time a Japanese person is summoned, princesses and elves and beastmen and whatnot are reverse-summoned. Under the acknowledgement of the government, they begin living in Japan. Today, too, Japan is at peace. And so begins this laidback isekai cultural exchange story♪

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