Who Is the Best at Repairing Mechas?

After being reborn into the interstellar world, Su Yi originally wanted to build a mecha quietly, but who knew that his mental strength would also skyrocket as he grew older! In order not to go to the frontline battlefield so early, he had to hide secretly, but he was surrounded by geniuses, and he couldn't ignore his friends when something happened. Forget it, he might as well go on his own...