I Have Traveled to a Secret Realm, and I Have Three Choices.

A hundred years ago, the fall of a meteor caused huge changes in the world. Countless secret realms appeared in front of people's eyes, and animals evolved into ferocious beasts, resulting in many fewer places for human production. Su Mu traveled to this world, but was deep in a secret realm. This secret realm had not yet been opened, but fortunately Su Mu activated the system at the critical moment. Option 1: Become the master of this secret realm and be unable to leave the secret realm Option 2: Become the first original resident of the secret realm and receive the protection of the secret realm. Option 3: Unknown identity ps: The introduction is weak, please read the text. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.