Yukari types and Yuyuko types tend to get along well and sometimes mate, despite the Yukari's mischievous and "holier-than-thou" attitude. Yuyukos often treat Yukaris as esteemed guests in their households, considering each other as equals, even if the two had never met before. Yukkuri behavior continues to fascinate scientists, as despite having different personalities, two Yukkuri of the same type have similar mannerisms. It's almost as if every Yukkuri of a certain type is trying to mimic a specific person, but none of the people they're mimicking have been found.
