This is the story of how one primitive lame old mecha anime became a legend that leads the way for humanity.

Eirun Bazatt after a malfunction arrives during a battle between what appears to be Japanese forces fighting against monsters called 'Malice' and he's not one to run away from a fight...

Takaya was abandoned by his classmates in a another world. However, he is taught that his manufacturing skills are at a transcendental level and awakens! In addition, maids, priests, arch-demons, wizards, and even wolf girls gather around!?