They balance each other out since Chiyo's dancing ability is passable but not great, and she's not that talented at sports in general.

"I'd be a different kind of artist if I didn't. The more sure I can be with my hands, the better I can do my work. Is dance similar?"

That's not to say Chiyo won't make any mistakes, but that's why she has cotton pads on standby to clean up any stray spot of color.