My Disciples Are All Righteous Undercover Agents

Chu He went through untold hardships and finally cultivated to the realm of the invincible Demon Lord. He thought he could dominate the world. Unexpectedly, the system was accidentally awakened. Chu He: "System, I'm invincible, what else do I need from you?" System: "It's too small. Host, your situation is too small. This world is just a small mundane world, and there are spiritual worlds and fairy worlds outside the sky. The strong people there can kill you with one finger." Chu He: "... How can I become stronger?" System: "It's very simple. You just need to recruit disciples, teach them the secrets of skills, and let them become top experts, and you will become stronger and stronger!" Chu He: "Is there such a good thing?" System: "But the disciple you accept must be an undercover agent placed by Zhengdao in the Demonic Dao!" Chu He: "??? You want me to raise two or five children?" A few years later. Many disciples pointed their swords at Chu He: Master, I'm sorry, I'm an undercover! " This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.