Yu Sha took a few steps, slowly towards the enemy. Instead of using Light Technique she wanted to intimidate him of her energy. With each step, another level of inner energy was released. To keep up with her, the enemy boss did the same. Each time she released a level of inner energy, he released one level too.
After releasing the 4th level, trails of energy overflow around her body, Yu Sha charged at him. The ground that tasted the overflowing energy cracked apart, leaving evidence that she treaded that path.
Upon approaching the enemy, she threw a powerful punch to which he blocked and was pushed back a few steps. She didn't retreat her fist but continued to put more force and energy into the punch. If he lost concentration even just for a nano second, her punch would tear him apart.