A-2-15: Lonely Armor, is the entity with the strongest combat capabilities among all known contained anomalies. Other S-class and A-class anomalies might have other abilities and uses, but when it comes to combat, Lonely Armor is the strongest without a doubt.
This sentient black armor that suddenly manifested in this world was ridden with many sword and blade marks, he carried a heavy and large claymore that was full of holes, as well as a tattered red cloak on his back.
When he suddenly manifested in public, he caused quite a commotion at the time. However, the commotion was swiftly suppressed by the SCR Foundation, which then administered amnestics whenever necessary and signed contracts of confidentiality wherever it was needed. Although some footage still floated around the internet from time to time, most people believed it to be nothing but an elaborate practical joke.