She guessed not, when he dropped the grin within seconds. Perhaps excited to meet another like him? Yes, it was possible. She'd felt the same way before, whenever she was given a chance to be useful to Takashi when she was much younger. Now it was still the same, although perhaps she did hide her eagerness instead of so obviously beaming at the mention of whatever request he had for her. "God metal slayer..." she murmured upon hearing him speak. He was the opposite of her, which made it even more interesting.
She listened quietly as he explained further. She wondered why his brother would give up using God Slayer magic; especially when he was already born with the magic. She was sure that being born with such a strong, ancient magic would've made him powerful - why'd he give that all up? "Why did he give up his magic, especially if he was born- What? Born with it?" she muttered the last few words to herself. It had taken her by surprise; realizing that his brother had been born with the magic. Born. Not... Trained, or gained from lacrima. Was that possible? She hadn't known about it before, since most slayers either got their powers from their respective mentors or lacrimas.
Hana was unsure of how to answer his question. "I made a contract with my mentor... And in exchange for power, I gave up a small portion of my soul." She answered hesitantly, wondering if he'd see her as inhuman for giving away something like that. Not that it affected her much anyway, since she'd probably never see him again after this. Staring down at the pieces of metal, her ruby colored eyes widened. "Ah. I forgot to place an order."