Journey to the West: Danhei Myth Wukong

Traveling to the west, Sun Wu became the great sage who was crushed under the Five Elements Mountain. All his magical powers and spells are gone, leaving only his indestructible body and magic power, and his martial arts skills are completely incompetent. Fortunately, there is a system deep in my mind that can open a copy of Black Wukong's world. Help him relearn the magical martial arts of the Great Sage. This is where the story begins. (The introduction is too weak, please move to the text)