America, New Jersey 1993.

Here in center of New Jersey is Gotham home to the famous dark knight: Batman.

For seven years Batman have defend and protect Gotham from criminals and insane villains.

However today is a dark time as Joker had killed several people that refused to give him money however what he didn't know is that he unexpected allow a teenager to live through the horror.

After Joker was arrested did the unexpected happened the same teenager yell at Batman.

Y/N: "You are a horrible man to allow that monster to live rather than killed him! I hope you rot in hell!" He said as he is dragged into an ambulance.

It was that day that Batman and the Joker have unexpected created a monster.

Japan, Remnant City 1994.

For the next year Y/N been training under the guidance of his mentor Deathstroke.

Who taught him everything but what his mentor doesn't know is that Y/N been training others that swore loyalty to him.

Once Y/N finished his training he then went to recruit those that are loyal to him and formed the Militia.

Although the Militia is small it begin to recruit civilians that wanted change in the justice system thus expanding.

For the next few years the Militia and it smaller operation Tyger would become a powerful military group.

America, New Jersey 1997.

The next three years was a challenge as Y/N aka Arkham Knight been waiting for the day Joker would strike.

While waiting he make some deals with certain people like Sharp and Doctor Strange however he doesn't trust them one bit thus why he got plans for them should they backstab him.

Plus Y/N make some connections to certain people that have provided him the resources needed to bring order to the chaos.

Thus he is in the Tower that over see Old Gotham watching as Batman arrives at Arkham Asylum with the Joker.

Y/N: "You might be the greatest detective Batman but even you won't be able to save the day" he said glaring.

Y/N watch as Joker escape and cause a riot throughout the asylum with Batman trying to stop him.

However Y/N ain't alone as with him is Tala and Jason Todd.

It wasn't long until Batman managed to beat the Titan Joker however what he doesn't know is that Tyger arrive and begin to move several villains into transportation trucks which is being watch by Sharp who sweat as he hold a phone.

Sharp: "Thank you for coming to secured these insane people Knight" he said.

Y/N: "Just be glad I can hold them so that your plan of building Arkham City is on the way. Besides you don't want Gotham know about your dark secrets" he said which Sharp gulp nervous as the phone hang up.

Sharp: "Let hope he and Stange can handle those insane people better than the Asylum" he said unaware that Y/N have big plans for Old Gotham.