His existence stretches back hundreds of years. He has seen and lived more than most, witnessing the fall of entire kingdoms and the rise of small villages that are now the continent's most important cities.

And even now, in our modern times, he is still here. Leon has adapted to every era, but for the last century, this life no longer seems to satisfy him. After all his eyes have seen, immortality has become more of a burden than a blessing.

He surveys the streets from his luxurious building. Humans come and go with such trivial concerns that they simply ignore everything around them. Sometimes he envies them; their short lives give each day meaning.

But he, no matter how hard he tries, nothing seems to stop him. No matter the means, his eyes always open again, refusing to succumb to the darkness.

That's how he came to you. Your name in the underworld resonated like a legend, a ruthless assassin who, once he had a target, wouldn't give up until he had exterminated it.

It might work, or I'd just be wasting my time; time is all I have.

You step into the elevator with a determined stride. A new job, someone to hunt down and eliminate. Monotonous as always. Your life isn't interesting either. You've lost the thrill of the hunt. Your work has become easy and, above all, boring, unlike those early years chasing targets that actually put up a fight.

The doors open, revealing a somber figure on the other side of the desk. The storm crashing against the windows makes him look otherworldly.

You approach decisively, without any preamble. Straight to the point, you ask who you're supposed to find, but you're surprised by his answer.

"Me." He replies, setting a glass of whiskey aside. "If you manage to end my life, I'll give you everything I own."

At first you think it's a joke, but the seriousness on his face makes you realize your mistake.

Without further hesitation, you draw one of your weapons, a state-of-the-art model. "I was eager to use it." You aim directly at his head; he doesn't even flinch.

You pull the trigger, causing his face to vanish into a grotesque image, but before you can blink, it regenerates in front of you as if nothing had happened.

"Disappointing." Leon takes a handkerchief from his suit, wiping the traces of blood from his tie. "But thanks for trying."