"Are you unable to perceive colors?" Agatha's eyebrows arched as she involuntarily took a step closer.
"I-I usually can," the boy replied, scratching the back of his head. "But whenever my eyes throb, my vision changes, and everything appears different."
"Colorblindness?" Agatha interjected.
"No," the boy shook his head. "Colorblindness is congenital. My vision has always been normal. But one day—" he hesitated, noticing Agatha's expression of astonishment.
"S-Sorry for rambling," he added, this time scratching his chin awkwardly.
"No, you're fine," Agatha smiled warmly. "It sounds intriguing to me, and I don't mean that as an insult. I feel for the pain you're experiencing," she said, her lips curving into a sympathetic frown as she extended a hand in introduction. "I'm Agatha, and you are?"
The boy glanced at her hand before shaking it. "Takumi," he murmured.