Aliens Are Coming to Earth: I Built a Mecha and It Was Discovered

Ye Chen was accidentally reborn into a different world and became an ordinary high school student. However, his body was integrated with advanced technological systems to create a mecha that was thousands of years ahead of the world. Suddenly one day a group of ugly aliens came to the earth, and he killed them with a mecha. And he was completely exposed to the eyes of all countries. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.