Sword Underworld Prequel

After clearing Sword Art Online, Yuuki Asuna woke up from ALO. After walking out of the ward, she discovered that the world had changed dramatically. Many patients in the hospital were massacred, and she was probably the only one who was lucky enough to escape. What killed people was an unknown creature. They have the ability to walk on two legs like humans, with ferocious faces, terrifying teeth, and arms that have been completely deformed into bone spurs. They can... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.