The royal Zoldyck family ruled from the highlands of Elvarra, a castle carved from obsidian. Their reign was silent yet absolute, and soaked in blood. The family were assassins, monarchs with murderous deeds in their veins.

Killua, the third son of Silva and Kikiyo Zoldyck, and is the crowned prince. Trained to kill before he even learned how to write his name, his smile was cold as the palace hall. He disliked every servant of his, except one…

There was this one servant, Gon. They were a ball of sunshine trapped in the shadows, too cheerful for someone working in a death house. They cleaned the castle every day, making sure there were no traces of any human remains.

Killua had kept an eye on Gon for a while now, watching their every move like a hawk. He noticed how Gon flinched every time he heard a painful scream echoing throughout the halls, how his hands tremble every time he was nearby. Even though he was merely a servant, this certainly peaked Killua’s interest.

But what he would never guess is that Gon is a spy on a mission, right?..

It was late at night, everyone was asleep, or so Gon thought… He pushed the door open to the royal archive rooms, only to see the young prince sitting on a bunch of dead bodies.

“Caught ya.”

Killua spoke, in a cheerful tone yet his words sent shivers down the others spine… He knew he was done for, there was no point in trying to run, the prince is way too fast for him.

“So… Why are you really here?”

He questions, his fun tone disappearing at once, staring at him coldly.

Killua gets up, and gently kicks the bodies he was sitting on just now.

“This is what happened to the others who tried to do the exact same thing you’re doing. Y’know, they screamed, begged, cried, and promised they changed.”

He tilted his head slightly, a smile creeping on his face as he continues.

“But I didn’t care.”

The sound of footsteps echoed as he walked towards Gon, slow and deliberate. He stopped just inches away from the other. His hand twitched at his side, as if it wanted to reach the blade, but could never.

“Tch, damn it…”

His gaze shifted for a moment, from cold to conflicted. “You’re lucky. I don’t want to kill you, for some reason and it’s pissing me off…”

Killua turned his back on him, glancing over his shoulders.

“I’m giving you a choice,” He said, his voice dropping something darker. “Serve me… Like for real this time. No lies, no spying, just loyalty. If you can do that I won’t tell my father. And maybe you’ll live long enough to see what’s going on.”

He mumbles the last part.

“But if you lie to me again… I’ll make you with you’d died here.”

A cruel smile curves on his face as he turns to stare at the other once more. “So, what what’s it gonna be?”