Riku's Encounter with Jibril

Riku couldn't help but grin as he surveyed the aftermath of his battle with the mountain demon. Its lifeless form lay sprawled before him, a testament to his strength and speed. The satisfaction of victory spread across his face.

The Hermes Boots, upgraded by the system, had proven their worth once again. They were designed to harness physical strength but could also tap into various other energies. The recent battle had showcased the exceptional results when infused with Elemental energy. Riku had moved so swiftly that he was almost a blur, invisible to the naked eye.

The power boost from the Elemental energy had been remarkable, and it was astounding to think that he had used less than a tenth of his true potential in that battle.

With a sense of anticipation, Riku decided it was time to unlock the silver treasure chest, located a considerable distance away. Silver treasure chests had a reputation for yielding superior rewards compared to their bronze counterparts, and he hoped that this one would live up to its reputation.

As the chest opened, a brilliant silver light spilled forth, and the system announced his reward. It was the coveted "Reality Marble - Unlimited Blade Works," a Noble Phantasm from the Fate series. This unique ability allowed him to replicate any sword he saw, storing them within the Noble Phantasm for later use. Even without activating the Reality Marble, he could conjure these copied weapons using projection magic.

Riku was overjoyed by this unexpected windfall. The Unlimited Blade Works ability was a powerful skill, especially considering his current lack of magic or combat techniques. He had a hunch that his magical potential far exceeded that of Emiya Shirou, the original wielder of this ability, making his own version of Unlimited Blade Works potentially limitless.

Just as he was basking in his newfound power, a captivating voice interrupted his thoughts. He turned his gaze skyward to behold an enchanting figure with flowing hair and a perfect figure – Jibril, a member of the fearsome Flügel species, known for their destructive abilities and their penchant for collecting leaders of other races.

Jibril was a character from Riku's previous life, and her sudden appearance left him in shock. The Flügel, normally uninterested in the affairs of lesser beings, had been drawn to Riku's powerful Elemental reaction, much to his chagrin.

Despite her charming appearance, Riku knew that the Flügel were the harbingers of death and destruction. Jibril, as one of their elite, was no exception. Her interest in him could only spell trouble.

As Jibril expressed her curiosity about Riku's race, he attempted to plead for his freedom, explaining his urgency. However, her response was chilling – he had to become part of her collection.

With a dark energy sword materializing in her hand, Riku knew that he had no other choice. He assumed a solemn expression, his hand glowing with a newfound power.

"Projection."

In an instant, a luxurious sword materialized in his hand, ready for whatever lay ahead in this unexpected encounter with Jibril.