After Becoming a Superpower, I Just Want to Go Home

This is a world controlled by superpowers. Zhang Hao traveled through time and graduated from the Public Security University. He originally just wanted to be an ordinary security officer and get a job. Until he saw the letter left for him by the current 'cheap dad'. "You must join the Security Department, acquire superpowers, and become a superpower agent so that you can travel to my hometown in the future..." "When you become a high-level superpower, I hope you will help me block all the channels to my hometown, because I don't want my hometown to be invaded by aliens..." "Finally, I will tell you that I come from a blue planet, and the name of my hometown is Huaguo..." "Remember, don't tell anyone the content of this letter, remember, it's anyone!" After Zhang Hao read the letter, he couldn't believe it! "I don't have to stay in another world? Can I go back to Blue Star?" "Cheap dad, are you a time traveler too?"