Solve the Burning Legion Invasion at the Beginning

"Living planet?... It's actually a primitive living planet. How lucky you are. Let me destroy it!" "Who are you? Insignificant human being." Suddenly Sargeras saw the insignificant human being who suddenly appeared. "Who am I? Let me think about it. I remember many of my names. Some people call me Dao Ancestor, and some people call me Guardian of the Earth. You can call me Guardian." "Guardian? Just you? Want to stop my Burning Legion?" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.