Marked Ones: Advent of the Demon Prince - Chapter 8: Truth and Training

Zhu Kang, a trafficked soul, was captured by an evil organization and was stripped of his real memories. Unaware of the dangers he worked for this evil corporation as a system.One day, all of a sudden, fifteen men dressed in black started a shoot-out killing all the other systems.In desperation, Kang threw himself into a transmigration device that tossed his soul into a random world.“System 202 has escaped.... a-again.....” one of the black-clothed men said. Trembling, he glanced at their team leader.Kai Alden gritted his teeth. “You let him slip away so easily! Send me into that world. I will capture my dear System and bring him back here,”

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

This novel is also known as Fey Evolution Merchant

The shining stars and birds flying in the blue sky and white clouds, the fast shadow clouded leopards hunting and hunting in the vast grasslands, the acid eroded pythons hiding in the shadows of trees in the mottled rain forest, and the chalky Canglong dragon under the deep blue sea.

Lin Yuan found that he could allow infinite evolution of spirits, and continuously purify the bloodline.

Dust butterfly-stainless steel butterfly-emerald green butterfly-royal tourmaline butterfly.

This is a pure pet article, a world of beast masters.

- Description from MTL

I don’t need companions. I don’t do party play. But… the game forces party play?