Senku glanced at her when she spoke up and considered her words for a moment.

"I'm not very sentimental." He murmured. "But this one recording, which is the only thing we have like it, is something I've promised to protect with my life."

He exhaled. "I know they are. They're something I've promised to bring back to the world. I don't take that lightly. But those things weren't even left behind. All we have is the record. One of the last gifts my dad left for me."