Stranded in a parallel world, Kazuki searches for the injured pilot, Yayoi, but finds she’s been taken by UN forces. Returning to his home, he’s shocked to find his parents don’t recognize him and his belongings are gone. Captured by soldiers led by Mitsuki, Kazuki learns he doesn’t exist in this reality. Ken Sanada, a UN Global Defense Force leader, reveals Mitsuki arrived a month earlier and is a core robot pilot fighting the Rara army, led by scientist Hiroshi Rara. As Kazuki grapples with his displacement, he faces the reality of a world at war.
Kazuki experiences hallucinations of fighting robots that no one else can see, so he should have expected trouble when the most beautiful girl in school took an interest! But there's no way he could have expected to be waylaid by a mad scientist and thrown into a parallel world with robots, aliens, and a boarding house filled with beautiful girls! He may not make it home. He may get hurt. He may go insane. But at least he gets to drive the Robots!
