Hunter x Hunter: The Strongest Zoldyck

Loy was not born to be a killer. He was simply unlucky enough to be born into the Zoldyck family. Every day, he plots his escape, and every day, he fails. His confinement is not due to heavily guarded gates or ferocious watchdogs. Instead, his freedom is barred by the shadows themselves. Each time he approaches the Testing Gate, someone is always waiting for him in the darkness—people who call themselves his "family."