Kami looks at the rock, unimpressed. She was pretty strong, that he could see. However, he would not have his power questioned. An ant should not question the boot above it, and neither should a dog question it's master. With a smug smile, Kami holds out a single arm, pointing it to the right, away from the girl. "Allow me to show you true power, you ignorant fool. [b]Nuclear Leavel: 1[/b]" 
A single oxygen atom, split open. Kami felt the atomic force bursting loose, as he directed the wave of light towards his right side, tearing through the forest like a focused beam of nuclear power. After the flash, the shockwave crashes through the entire forest, also channeled, as the burnt remanants of the trees are shattered by the shockwave. After this commotion has ended, there is no longer a forest, to Kami's right. There is simply a wasteland, almost a square kilometer in size. Kami could have performed a far more impressive attack, but then he would no doubt have killed the girl.