Mecha Era: Becoming a God by Conquering the Strongest Mecha-Girls

The Story

A boy from Lower City enters Upper City college only to awaken F-rank talent. He faces expulsion and a broken engagement before discovering SSS-rank authority. He rejects the standard one mecha per human rule, recruiting three mecha-girls who teach obedience, strategy, and political theory. While others battle beasts with grit, he relies on his mecha-girls' essays. When Upper City elites deploy SS-rank warriors, his legion remains busy finishing daily study reports. They call him Mentor. He simply wants a stable life for his girls.