Aaron Yulier is an ordinary high schooler who wants to be a doctor and marry his childhood sweetheart—or so he thinks. His world is turned upside down when a strange object he collected attaches to his body as an armor—the Absorption Armor. While wearing the armor he can speak and even merge with the souls of previous, deceased armor users that all have their own ambitions and motivations.

Aaron's life only gets worse when his parents and classmates don't remember who he is or his fiancé Elizabeth. His fiance disappears without anyone remembering who she was before he is greeted by Kyle Ayers, a strange man representing a faction called "Fulir". Aaron goes on the run from the alien forces trying to capture him before running into a group of fugitives in what is known as a Remnant Village. Now, with their help, Aaron seeks to get back his lost love and save the Earth from Fulir's grasp.

But as Aaron will soon realize, this alien threat is far sinister than he realizes…