Ivan is a driver of an M1 Abrams tank in an elite tank unit called "Red Musket." On what was supposed to be their last mission, the tank is struck by a military truck, and suddenly he finds himself in a fantasy medieval world. Miraculously, he retains possession of the tank, but his crew is nowhere to be found. Determined to reunite with his comrades, Ivan embarks on a perilous journey. Along the way, he encounters allies who temporarily join his crew, with Ivan assuming the role of captain. Now faced with the challenge of surviving in this fantasy realm, Ivan relies on his expertise with the M1 Abrams, and overcoming its significant logistical demands. Let's join him on his quest as he battles alien-like monster creatures known as "Cerus" and confronts even the Demon itself. With his modern knowledge and technological prowess, Ivan revolutionizes this new world, using his tank to combat the monstrous threats. Together, let's witness Ivan's journey unfold as he races towards his future and a new home, full speed ahead!