The End of the World: I'm Really Not an Alien

I was reborn, reborn back to my college days, and was about to start a glorious life. Why did the end suddenly come? Fortunately, I awakened the system and got a substitute that can blow up balloons - Tubular Bell. What do you mean I'm an alien? I'm just a human being who blows up balloons. Why are there really aliens in this world? I want to kill all the aliens and rectify my name as a human being. What does it mean for aliens to be innocent? They were just passing by. Why do aliens and humans call me alien? I'm really not an alien