Unseen Observer

Arriving in what appeared to be Hueco Mundo, Yami found himself in the midst of a forest teeming with hundreds of Gillian-level hollows. The sheer destruction that a single Gillian could unleash left Yami's mind reeling. Yet, despite the overwhelming danger, he was grateful for his unique ability to remain hidden in plain sight.

The forest of Gillians and Menos Grande was an otherworldly sight. Twisted trees, gnarled vines, and hollow holes emitting a faint, eerie light created a tableau of unsettling beauty. The ground was uneven, marked by rocky terrain patches and dreadful gray sand stretches. The towering figures of Gillians moved like spectral giants, casting long shadows that danced upon the ground.

Observing the Gillians' behavior, Yami witnessed their herding tendencies, often moving in groups and occasionally engaging in clashes among themselves. These chaotic interactions perplexed Yami, leaving him to question their motives and hierarchy.

Days passed in this alien landscape until a significant event shook the forest. A wave of force, akin to a pressure exerted when reiatsu is used, swept through the area. The Gillians began to move in a unified direction as if following an unseen command. Curious yet cautious, Yami trailed behind them, the magnitude of this unexpected occurrence keeping him on high alert.

Amidst the eerie procession of hollows, Yami muttered to himself, pondering the strange turn of events. He decided to hide atop one of the Gillians, theorizing that those with remarkable reiatsu levels could potentially sense him. This hypothesis stemmed from his encounters with the man in the spirit corridor and Amane Shihoin, who both demonstrated an ability to perceive him.

His thoughts raced as he gazed at the mesmerizing sight before him. Hundreds of Gillians, along with other peculiar-looking hollows, converged around a colossal structure.

Yami's hushed exclamation of "What the hell" hung in the air, a sentiment that echoed through his mind as he clung to the towering Gillian. This surreal scene before him defied everything he had ever gleaned from textbooks or imagined in his wildest thoughts.

Balancing precariously on Gillian's bony form, Yami's eyes darted across the expanse of the colossal structure. His keen observation revealed not only the menacing lesser hollows but also the presence of a different breed of hollow, distinct in their command and eerie aura.

A hollow unlike any he had seen before ascended the broken castle-like structure, appearing as a creature formed entirely from bones. Crowned with an ornate headpiece and wielding an axe-like weapon, it emanated an air of authority. Upon its arrival, the surrounding hollows instinctively lowered themselves, their limited gestures resembling acts of reverence.

Yami's thoughts raced with intrigue as he pondered the implications. Could these hollows possess something akin to the Gotei 13? The skeleton-like hollow seemed to hold a leadership position, reminiscent of the Captain Commander of the Gotei 13.

After a series of communications with the other hollows, the skeletal figure returned to the central throne-like structure, a place that appeared to serve as a seat of power. Strange sounds resonated from one of the peculiar hollows, prompting the Gillians to disperse.

As the forest slowly emptied, Yami wrestled with a mixture of feelings. The option to stay and learn more or to retreat with the Gillians weighed heavily on his mind. Feeling the need for a plan and a stronger resolve, he whispered to himself, "I'll be back once I'm stronger."

With determination in his heart and a newfound sense of purpose, Yami memorized the path leading to the towering structure. He retraced his steps, heading back to the forest with the promise to return when he was better prepared to face the mysteries of Hueco Mundo.