There Is A Huge Problem With My Achievement System - Chapter 275 - : Redefine Hidden Weapons!

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]

His Royal Highness the King of Han, who was afraid of the dark and ghosts and loved to cry, has always been the good baby of the princess.
Until one day, His Royal Highness the King of Han found a book in the bookstore…
Picture book?
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- Description from novelbuddy

【Let me laugh’s new book, you know what I mean, the quality is guaranteed!】 The Reincarnator Chu Ge was unfortunately bitten by a Black Cat, and because of this, was pulled into the Survival Arena. Upon entering the Survival Arena, humans would randomly transform into animals or plants to compete in life-and-death struggles, with the losers completely turning into animals and living in a daze in zoos forever! Bedrooms, parks, mountain peaks, boundless grasslands, azure seas, and magnificent atmospheres—all became arenas of competition! In the Survival Arena, Chu Ge became an African Lion! Lions fought tigers, dragons contested with pythons! Chu Ge said, “In the survival of the fittest, I must survive!”

Reborn in 2004, facing the age where pigs can be blown up, Lin Xuan, carrying the “Strongest Cottage King System”, started galloping…