Dimensional Reincarnation

Disheartened by the third dimension, I suddenly reincarnated into the world of the second dimension. After an encounter with the system, I learned that this world would face a catastrophe from "witches" in nine years. Many dungeons and infected areas infected by mysterious energy appeared all over the world. Under various uncertain factors, can I be strong enough to solve this catastrophe and become the savior in just nine years... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.