"Yeah, that took about a year." Senku agreed with a bit of a nod. "Coincidentally, agriculture has nothing to do with it, it's a mix of nitric acid and alcohol. Nital." He grinned.

"Calming?" He blinked. "But...it's a bunny." He didn't really understand the purpose behind it, although if he gets calm from that, more power to him, he supposed. He had a hard time relaxing himself, he wasn't the best judge of what bunnies could do for people.