At Nanda Parbat.

Somewhere in a uncharted location is a mountain which is the home to the League of assassins.

Entering the base is Y/N who admit it a challenge to enter the base since there are assassins everywhere.

But now that he's inside it gonna be more difficult as he knows how dangerous the league of assassin's are compared to the brotherhood.

So without hesitation he sneak into the base and begin his search of the leader Ra Al Ghul.

A few minutes later.

Y/N Pov:

It took me fifteen minutes of sneaking, killing, and hiding bodies but I successfully found the leader who is mediating.

Ra Al Ghul: "No point in hiding young man" he said surprising me but I relax and reveal myself.

Me: "So you're the famous Ra Al Ghul" I said then see Ra open his eyes.

Ra Al Ghul: "Indeed I am Y/N" he said surprising me but I realized that he knows the world better.

Me: "I assume you know who I am and what I am?" I said which he nod then got up.

Ra Al Ghul: "You're apart of the assassin brotherhood which I admit is powerful and skill but you're a child compare to me" he said which I nod fully agreeing with his logic.

Me: "Then let see if what you say is true" I said then both of us charge at each other.

3rd Pov:

Both Y/N and Ra Al Ghul fight is intense as either show any hesitation of killing the other.

While both men are slashing each other they failed to notice a crowd watching them in the shadows.

Assassin 1: "I never thought we see Master Ra fighting someone who is matching his speed and skill" a random assassin said.

???: "That because there ain't a lot of men that is able to match his mastership" a female voice spoke causing the assassins to kneel before two ladies.

Lady Shiva.

And Talia.

Talia: "This is the first time someone is able to match father skills and speed" she said with a smile.

Shiva: "Indeed but just from his method this stranger is clearly from the Assassin Brotherhood. The oldest assassins compare to the League of assassin's" she said impressive.

Suddenly everyone went quiet when they heard the fighting stop which they look to see both Ra al ghul and Y/N bowing to each other with respect.

Ra al ghul: "I test your skills and I am impressed so far. However it time to see if you are worthy of being an assassin" he said then snap his fingers causing an assassin to appear holding a file which they gave to Y/N who immediately read the file.

A few minutes later.

Y/N: "So my final task is to kill a corrupt father in Gotham" he said looking at Ra al ghul.

Ra al ghul: "Correct and should you face Batman show no mercy" he said which Y/N nod then use a smoke bomb to vanish.

Shiva: "Should we spy on him in case he is worthy to lead the League?" She ask which Ra al ghul nod.

A few hours later, at Gotham.

Y/N Pov:

It took me a while but I successfully found my target who I admit is happy with his family but I know how this gonna hurt the wife and daughter over his death.

So without hesitation I grab the target once he set outside the apartment and was about to kill him when Batman appear and kick me away from the target.

Me: "So the Bat who lost his parents reveal himself" I said surprising Batman who then glare.

Batman: "So you know about my past I assume" he said which I smirk.

Me: "Just be glad I respect your identity otherwise everyone would know" I said then dodge a bat rang.

Batman: "Doesn't matter as you're going to prison for attempt murder" he said which I smirk as a thump was heard causing Batman to turn to see my target dead on the ground.

Me: "Before you arrive I managed to poison him which might be a coward move but that what assassins do" I said then I begin to dodge as Batman begin to punch me and attempt to hurt me.

Batman: "Just who do you work for as clearly you're not a League of assassin" he said but I just chuckle before I punch him in the stomach surprising him at how strong I am.

Me: "The shadows be around longer than the League" I said then round house kick his face hearing his jaw slowly broken.

I then punch him in the chest causing him to hold his chest as I hit directly at his lungs.

Me: "Now then I suggest you heal as the next time we meet I won't hesitate of killing you" I said then used a smoke bomb to vanish.

3rd Pov:

At Nanda Parbat.

Watching the entire fight is Ra al ghul who smirk at how easy Batman was beaten by Y/N.

Ra al ghul: "Our alliance and the future is secure" he said smiling.