After a fatal car crash, Tsubasa Kurata, an anime enthusiast, finds himself reincarnated in the Fremmevilla Kingdom, a realm where giant mechs known as Silhouette Knights combat monstrous demons. Reborn as Ernesti Echevarria, a gifted magic user in a noble family, he enrolls in the prestigious Royal Laihaila Academy. Here, students learn the art of piloting Silhouette Knights to defend against both fiends and human foes. Teaming up with twins Adeltrud and Archid Olter, Ernesti aims to achieve the impossible: crafting his very own Silhouette Knight, a task unaccomplished for centuries.