A mecha otaku gets a second life and immediately treats magic like code. The show's smart enough to let him actually solve problems by importing real knowledge instead of just wishing hard. You get cool robot designs, snappy pacing that never wastes a scene, and the satisfaction of watching someone competent actually be competent without the typical isekai padding.
Ernesti gets a second chance at life when he's reborn in a world where towering mecha called Silhouette Knights are real. Problem is, he's stuck as a noble's kid instead of behind the controls where he wants to be. Armed with engineering knowledge from his past life and an obsession that won't quit, he becomes determined to pilot one of these massive machines. What starts as a personal dream spirals into something bigger. Ernesti throws himself into magical research and mechanical design, rallying fellow students and nobles to help him build and improve upon existing Knight designs. Along the way, he uncovers just how much the world actually needs skilled pilots and engineers. Monsters lurk beyond civilization's borders, and the Knights are humanity's best defense. This is wish-fulfillment anime with a real edge. Ernesti's genius translates into concrete results, and watching him work through problems feels earned rather than handed to him. It balances mechanical action, school life camaraderie, and genuine stakes that remind you the world outside the academy is dangerous.