Alex nodded slowly, but his mind still wasn't in the same place as his friends. The hidden power he had used during the battle to save them, though welcomed, came at a price. He could feel it deep inside him, the strain it put on both his body and his soul. The system had warned him, but he really hadn't taken any heed. Now, he couldn't shake the feeling that there was going to be some sort of repercussions.
He tightened his fists, feeling the ghostly hum of that energy still running through his veins. It was unlike anything he had ever felt, a rugged, wild energy that had allowed him to shatter free from the demon king's influence. Yet it was unstable and threatening. He did not quite understand it-and that terrified him.
"What's bothering you?" Mara asked, noticing the distraction in his eyes.