Senku had actually always been like that. With his intellect and the speed at which his mind worked, it manifested in strange ways sometimes, and one of those was the fact he couldn't sit still and be idle without something to keep his focus if he wanted to.

"They're assigned by the colour of your team. So purple this month is kitchens and bathrooms." Senku explained. "I'm on cooking, which actually is the first time since I got here. I'm not sure how it gets decided." He hummed. "It does change every month though. How you sort things out with your roommates is up to you, beyond that. I keep almost everything in my arms band so my things being around isn't an issue."

He considered that for a moment though. "I'm a bit concerned something will be borrowed and not returned. It's been a bit of an adjustment in that way."