MTL - Becoming a Saint by Leisure Reading - v6 Chapter 720 The Entrustment of Emperor Lin and the Secret of Bamboo Forest

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This is a brainstorming essay.
When another space node in the primitive rainforest world overlaps with our living space node, a passage between the two worlds is opened.
Plants from another world spread in just a few days and the city fell.
Before long, herbivorous, scavenger, and large carnivores appeared.

Content tags: fantasy space fantasy magic sci-fi power
Search keywords: Protagonists: Mo Qingqing, Wu Mengmeng (Wu Nan), Liu Ziche, Feng Qingran

- Description from novelbuddy

Once a live-in son-in-law, humiliated and looked down upon, he accidentally awakens a heaven-defying Eye Technique.From that moment on, his life takes a drastic turn. With peerless medical skills, x-ray-like vision, unmatched martial arts, and mastery of elixirs, he crushes all enemies in his path.This is the rise of the man they once called worthless—now unstoppable and untouchable.

He is a young man without a spirit root. It is believed that this denies him the chance at cultivation. However, a mysterious lady imparts a Supreme Demon Classic to him and from then on, he starts his path of cultivation.
He undergoes a total transformation to emerge as the most fearsome and powerful fiendish demon in his era, that even immortals and fiends are fearful of him, and saints are at his beck and call.
Mastering the Supreme Demon Classic is the turning point in his life. He is able to unleash his immense and divine power from within, illuminating the entire universe!

- Description from Novelupdates

In a world dotted with World Entrances to a demon world, demons have invaded humans for centuries. Humanity has united and one of the most ancient sects in the world, the Archean Mountain Sect, has set up an entire education system in the form of Dao Academies and defenses at the World Entrances.