MTL - Super Devouring System - Chapter 86 deliberately?

This is a story about the protagonist getting the system, going crazy in the biochemical apocalypse, producing aircraft and tanks, destroying zombies, saving good people and killing bad people.

- Description from novelbuddy

Jiang Siyu and Bo Shiyan entered into a marriage agreement to divorce after 99 times.On the last occasion, Jiang Siyu wanted to have a child with the man, but he remembered the count and directly presented the divorce agreement.Jiang Siyu was stunned. Looking back at the three years of marriage, she had been obedient to him, yet she couldn't melt his icy heart.Fine, they had their fun, so divorce it is.After all, men don't age well, so it's not a bad deal for the white moonlight!Jiang Siyu chose to leave with nothing and disappeared.Five years later, she returned dominantly with her child, with all her secrets exposed.The man cornered her on the bed, “The Bo family has had only sons for ten generations, thanks for gifting me with twins...”Jiang Siyu didn't quite understand what Mr. Bo meant by this.

After 10,000 years, it was iced. The Douro’s federal expedition team discovered an egg with a gold and silver two-color pattern during the scientific study in the northern part of the country. After exploring it with an instrument, it found that there were vital signs inside, and he quickly brought it back to the institute for incubation. The egg hatched, but it was a baby, a baby identical to humans, and an egg-born child.

- Description from ptwxz

We were a peaceful people living in harmony with nature in the vast lands of Lyréanor, but this peace was short-lived when our people were defeated by the dark elves, an ancient people even older than this world. It is said that they arrived in Lyréanor by boat and since their arrival, chaos has been unleashed. Proud of their obscure power, derived from dark rituals, they have raised gigantic armies of monsters whose name is synonymous with terror: ‘Obscurus’.They went on the rampage, and everywhere they went the grass didn't grow back, life died and disintegrated. Seven, there were seven. The seven dark elves known as the Lords of the Apocalypse. A single gesture from them was enough to strike us all down, a single gesture from one of them was enough to decimate us in blood and terror.And as I, Foster, contemplate the macabre scene before me, the bloodied and deformed bodies of my fellow elfes beings, and as death grips my soul, a strange sign appeared before me.[Ding... Activation of the world tree system]