Two in one's always a good deal, right? Well, except when it's Yin-yang! This duo is a walking contradiction, sharing a body and bickering over everything – from which way to walk to what to drink. Yin, the white half, is good-hearted and rational, trying to keep things balanced. Yang, the black half, is pure chaos: loud, impulsive, and loves causing trouble. While Yin embraces challenges and helps others, Yang thrives on misfortune and lashing out, even at Yin themselves.