Tate no Yuusha no Nariagari - Chapter 311 - Genius

“Come not between the Dragon and his Wrath.” — William Shakespeare The year was 2140, and Earth was nothing but a distant memory. Humanity now drifted through the galaxies aboard colossal ARKs, massive skyships that served as the last bastions of civilization. Yet, these ARKs were more than just floating cities; they were humanity’s last containers, preserving what remained of their species. A century before Earth’s final collapse, humanity discovered a gateway to a realm known as Eternia — a fantastical world straight out of myth and legend. Reaching this realm required more than just advanced technology; it demanded a complete departure from the physical body and entry into a mysterious process known as the Dream Weave. In the present day, Cloud lived aboard ARK NO. 427, where he had been training from a young age to step into the Dream Weave. He was a standout among his peers, excelling in every tasks that came his way. Everything seemed to be on track for him — until the pivotal day of the Class Selection process.

Host: What is your dream?Lv Xiaobu: To eat and do nothing, to do as I please.Host: Then how did you become the world's richest man?Lv Xiaobu: How would I know? You ask a spendthrift how to make money? Really! I want to go back to sleep.Host: Please don't...Lv Xiaobu: Tip, five thousand.Host: Kneeling and sending off Young Master Xiaobu, may Young Master Xiaobu rule the world forever!Lv Xiaobu: Wahahaha!

In this brutal world ruled by the law of the jungle, Ximen Wei is driven by his desire to return home and escape his past regrets and feuds.

As he becomes increasingly obsessed with achieving his goal, he loses his emotions and humanity, resorting to any means necessary, no matter how unscrupulous or immoral.

He becomes a symbol of massacre and death, a demon god feared throughout the Qi World for his willingness to kill anyone who stands in his way or possesses something he needs.

Follow Ximen Wei's journey as he rises to power, terrorizing those around him in his quest to become a powerful demon god.

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