'This feeling...' He thought, placing his right hand over his forehead, trying to find a completely different way to explain what he felt as he found his initial conclusion absurd.
'This feeling.' As he muttered in his thoughts once again, he raised his head and locked eyes with the approaching threat.
As he gazed upon Rentaro, a trail of dark energy escaped his body, it became even more intense than it was initially before.
Suddenly, Rentaro's eyes glowed a bright golden light, as Xerxes stared into his eyes, he felt like he was staring into an abyss. In that abyss, he saw countless eyes staring at him the moment he was discovered.
His heart skipped a bit the next moment, his eyes wavering with disbelief as he finally realized what it was he felt.
'Is this... Fear?'