Dudian frowned as he thought of the despair forest outside the giant wall of Sylvia. He had almost lost his life because of the mutated plants that were living underground.
Most of the plants were deformed or mutated into new species because of the environmental factors such as soil and air radiation. Some of the mutated plants were born with simple consciousness and were bloodthirsty, they would hunt like monsters. The probability of such plants being born was one in a hundred million, but every living plant that was born would become a huge hidden danger.
Whether it was humans or monsters, they would not care about the plants around them. This provided them with a natural protective umbrella when they were young, allowing them to sneak attack monsters and humans passing by and grow quickly.
In addition, they could absorb nutrients from the soil so they would never lack food.