MTL - I Give the Female Supervisor a Fish Pond - Chapter 79 confusion

Mu Jingzhe transmigrates into a book filled with sweet, doting love to become the useless supporting character who serves as a foil to the female lead. She also becomes the stepmom of five kids to her recently deceased husband.

What? Your future wife is a peerless killer, an underground queen?

Sorry, just killed her the other day.

…

I heard that your girlfriend is the famous champion of China, the dream lover of countless people?

Um, she was too tired and fell asleep at night, you can come to her tomorrow.

…

I remember that the abandoned store of the second uncle seemed to be bought by someone in a month or two.

Hurry up and exchange the useless places in the training house with your cousin for the abandoned store.

Then resold at a price of 10 million alliance coins.

…

What?

Xu Yang rescued a legendary elf and took care of it for a month.

Yi Lam knocked Xu Yang unconscious with a sap and threw him out.

The legendary elf who regained consciousness saw Edward Lam.

He was so grateful to him that he willingly became Edward Lam’s elf.

- Description from novelbuddy

“I lost everything again...?”Kain had to work hard to feed himself, in a small village on the edge of the forbidden lands. Unlike the others, he hated Keepers, the only people capable of fighting the creatures from the Astral Dimension. Everyone saw them as heroes, but Kain blamed them for the greatest tragedy of his life - the death of his parents.Ironically, the sacrifice of one Keeper allowed Kain to obtain a Rune Brand - the key to begin a trial, the outcome was either power or death.Facing another world, Kain discovered that his blood was cursed, and misfortune would always haunt him.But death would avoid Kain, wanting to keep such a valuable sacrifice for a god. Only failure would await him, but if it was possible death would pass by.Now, Kain must break his curse and take fate into his own hands for the first time in his life or remain a nameless offering.

This story is centered around the man named Yi Ji-Hyuk, who has spent 1000 years in a Medieval Western fantasy-like world before returning back to the modern-day Earth. When he returns, he finds that his home is facing monster threats, and that humans with superpowers have appeared to protect the innocent people of Earth.