Global Cataclysm: My Purification Tree Has Mutated to the Max

Everyone's Survival + Shelter + Fast-Paced Power Fantasy + No Dragging Things Out + One or No Female Leads + Decisive and Ruthless. Do not enter if you like preachy, overly kind protagonists. When Yang Chuan wakes up, he finds himself in a world filled with poisonous fog. Terrifying natural disasters, scarce supplies, and mutated beasts: danger is everywhere in this world, and even the air is toxic. Breathing it in for too long causes poisoning and a sharp drop in sanity, eventually turning you into a monster. Fortunately, from the start he has a miraculous fruit tree that can purify the poisonous fog around it. As the tree slowly grows and its purification range expands, can Yang Chuan survive in this poisonous fog world and build a shelter? … …