Btth: Xiao yan with killing system

The Valley of Thunder lived up to its name. Dark clouds loomed overhead, and the air was thick with the metallic tang of ozone. Xiao Yan crouched behind a jagged boulder, his eyes locked on the hideout below. It was a fortress carved into the valley walls, guarded by Lei Han's men—vicious bandits who thrived under his brutal reign.

Xiao Yan's mind raced as the system's mechanical voice chimed in:

> "Target: Lei Han. Power Level: 6-Star Dou Wang. Chance of victory: 65%."

The odds were less than reassuring, but Xiao Yan knew hesitation would get him nowhere. The system offered an optional enhancement: a temporary boost in speed and reflexes, but the warning was clear—it came at a price.

Activating the enhancement, Xiao Yan felt a surge of energy course through him. His senses sharpened, and time seemed to slow. He launched himself into the fray, cutting through Lei Han's guards with surgical precision. His movements were swift and calculated, each strike powered by the system's influence.

The commotion drew Lei Han out. A hulking man with lightning crackling around his fists, he roared, "Who dares challenge me?"

Xiao Yan stepped forward, his aura flaring. "Your reign ends here."

The battle was ferocious. Lei Han's thunder-based Dou Techniques tore through the ground, forcing Xiao Yan to dodge relentlessly. But the system's enhancements gave him an edge. Using the newly unlocked Crimson Sky Slash, Xiao Yan unleashed a devastating attack, shattering Lei Han's defenses.

As Lei Han fell, the system activated.

> "Life force absorption complete. Level up: 7-Star Dou Ling. Skill unlocked: Crimson Sky Slash."

Xiao Yan stood amidst the wreckage, his victory tinged with unease. The power felt intoxicating—but disturbingly unnatural.

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