A Mecha Master Walks into the Newbie Village

Mo Fan, a mecha prodigy from the Qianxia Kingdom, is on a mission when his mecha is damaged, leaving him stranded in a remote, insignificant country.

To get the parts needed to repair his mecha, he takes the entrance exam for the local mecha academy.

Then he discovers that the exam System is the one used for mecha exams in the Qianxia Kingdom.

He wrote the questions himself, so he's taking an exam he set himself.

After enrolling, he discovers that the mecha they're studying is the Mo Fan Mark I that he built when he was twelve.