MTL - Apocalypse Cockroach - Chapter 9 evolution?

This story is about love, revenge, the quest for power, and the right to exist.After being betrayed by his childhood crush and losing his loved ones to a human raid, Erik, a werewolf, ends up on another planet for seven years before he returns to a vastly changed, post-apocalyptic Earth.Originally a timid, unadventurous man, Erik has become far more dominant and assertive upon his return.Together with him comes his beloved but ruthless soul-bound partner and fairy, Elora, who wants Erik to rule and conquer with her by his side.Elora's presence alone makes Erik more powerful than others at this level, but will he find out what else makes him special?Follow them as they use the knowledge and strength they gained on Söl to navigate an Earth filled with magic, vampires, shapeshifters, and more.Along the way, Erik and Elora will meet a diverse cast of characters, some of whom Erik might have known in the past, and some he did not, but all with their own story and desires.Will Erik be able to take revenge for the betrayals of the past?And what else will he discover along the way?

Ye Song, who once lived in a technologically-advanced world, died and reincarnated into a noble teenager’s body in another world.

A fantasy world filled with magic!

A series of events filled with tragedy, action, etc. began to unfold one after the other when he fatefully encountered one of the most guarded secrets of this world, obtaining the legendary power of Wizards.

Watch how he reaches unreachable heights as a powerful Wizard in this new world.

- Description from Novelupdates

He called himself a human. However, the world revered him as a god. The epic adventures of Yeon Woo-jin, who possesses extraordinary psychic powers, unfold in a ruthless world.

Katherine Zara, a single middle aged office worker, went about her day as she always had; wake up, go to work, come home and read or play games. However, today would be different. Before she left for work, her ex broke into her apartment and killed her.

When she woke up, she was given many choices. She could pick her new world, pick her starting point, and pick her system among many other things. And so Katherine decided to become a servant to a villainess.

Follow Katherine as she serves her petty, demanding mistress in a world of swords and magic.

Additional: The Female Lead (Katherine) will be submissive to her mistress, but will be cold towards others. I plan on having some action, but mainly this will be a story about Katherine serving her mistress and leveling up her system.