MTL - After Wearing the Book, I Became the Second Mary Sue - Chapter 500 clue

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

A Filipino man died in an illness during the latest pandemic and found himself transmigrated in a world of magic, in which he received a dinging sound in his ear.[You have transmigrated in the body of: Nameless: abandoned newborn humanAbandoned what?[God of Undead: ??? Have bestowed you his blessing by giving you the name [ Sophia Demiurge] ]I'm a girl?

As a wife fan of the popular idol Huo Xi, Qiao Qiao’s most hated person is Sheng Qiao, an actress who ties up with Huo Xi for hype.
Besides taking camera to join some activities, her major daily life is to diss this white lotus sincerely.
She doesn’t expect that she becomes Sheng Qiao after her head was hit one day.

During the shooting process of her first cooperated love drama with Huo Xi, the first scene was NG for 27 times.
Huo Xi: Sheng Qiao, can you do it or not? If you can’t , you can be replaced!
Qiao Qiao: Husband, don’t be angry, I can do it!
Huo Xi: ? ? ?

Media: Sheng Qiao Leaks Out a Close Appellation, Huo Xi’s Hidden Marriage Exposure
Fans: You f*cking shit, Sheng Qiao, you lotus bitch, come out quickily and apologize and clarify!
The next day, Sheng Qiao explains in Weibo: Well… Wife fan, get to know?

Fight back in a desperate condition and hold the throne strongly.
[From being sneered at by all netizens to being supported and liked by them, the heroine also falls in love with her idol by the way.]

Popular star Sheng Qiao is recently photographed dating the Film Emperor.
In an interview with the media, Huo Xi is asked to send his wishes to this fan in the entertainment circle.
He looks coldly at the camera: Fake.
Sheng Qiao dispels rumors in Weibo hurriedly: I only like my idol. I’m not double-minded. Thank you.
At that night, idol gnashes his teeth in anger next to her ear: Announce our relationship. Immediately! Right now!

- Description from Novelupdates

In a certain world, there was someone who excelled in magic combat, people called him 『Sage』. Seeking the strongest combat art, he devoted himself to research every magic and combat arts in existence. And the conclusion he arrived at was very cruel, 『My body is not fit for magic combat』. Yet he didn’t give up. He sealed his own soul with a magic art, and was reborn in a far-off future. And the magic theory in the completely changed world he saw there was of unbelievably low level.