The desert was a crucible, its sands a testament to the relentless passage of time and the ephemeral nature of life. Amidst this desolate expanse, Kai and Ye Lin stood as the vanguard of an ancient struggle, their mission a thread woven into the fabric of an unending war.
Ye Lin's voice cut through the silence, her words a stark reminder of the task at hand. "Can you stop practicing and concentrate on the mission? You won't be able to learn no matter how much you copied me," she said, her tone indifferent yet laced with an undercurrent of urgency. Kai, his eyes still alight with the fire of discovery, acquiesced with a nod. The time for learning was not now; the mission demanded their full attention.