Disclaimer: Bleach and any characters in it belonged to their respective author and companies.Not me.
At a time, moors were territories that people fear to thread. There, was where monsters thrived, evil spirits lurk, ghosts haunt. Which was why, nobody ever saw, heard or even cared about the cries of a teenage boy. Huddled under a wilting tree, silent tears slid down his pale cheeks; tears of humiliation, fear, hatred. He should have had a bright future, the young music prodigy. But all was lost one fateful night, after his performance for the Grand Duke of Lithuania. Maybe he shouldn't have been alone when he came out for some fresh air. Maybe he shouldn't have worn those gemstone rings, a gift from the Duke himself. Or maybe he should have fought back with more effeort, even though he stood no chance against a band of burly robbers.
The boy still cried, not noticing the fading chain that linked him to a naked dead body; a body partially preserved by the cold, covered in various bruise and cuts. A wide ugly gash across its delicate neck. Its void emerald eyes stared into blank space, trails of tears eternally etched upon chalk-white cheeks.
The villages said it was an evil spirit that came from the moor. Every night, it would venture into the nearby towns and villages. Sometimes, they heard its bone-chilling cries; other times, they were pitiful sobs. But one thing was for sure. There wasn't even a single shinigami who came for that hollow. For decades, then centuries, it haunted the human settlements, hunting for despaired souls; suicide victims, people who are killed unjustly, victims of abuse; their hatred and humiliation manifesting in its instinct to hunt, subsequently leading it to go after those who had wronged the victims.
It was a while in Huenco Mundo, when the adjhucas and Vasto Lordes noticed an efficient killing machine among them. Swift and silent; its prey, be it gillians or other adjhucas, never stood a chance. A pair of glowing emerald orbs was what they'd ever saw, or the trails of dark-colored tears forever etched upon its face.
"Are you crying scared, weakling? Those look like tears, you know."
And the blundering arrogant arrancar was immediately reduced to nothing with a single cero. From that day on, no one dared to underestimate Ulquiorra Schiffer, the current Cuartro Espada.
Something that came to mind while pondering on Ulquiorra's face markings. Why the tear streaks? Thanks to my bro for the manga.