Alone. Surrounded by enemies. Armed only with his fists... Time to fight. Jack Rust was a disillusioned biologist with a PhD—almost. When an extraterrestrial AI calling itself the System invaded Earth and thrust it into a world of aliens, magic, and violence, Jack hoped to at least get some magic himself. Armed with nothing but his fists, Jack must grow strong enough to survive the battles that come next. With new powers, new enemies, and even a few new friends, Jack Rust knows the only way to freeing Earth from domination is by carving his own path all the way to the top.