Yukiko is a laid-back, cheerful sort of a person, yet at times can be a brutal realist. She does not hold grudges, and aside from a wilful stubborn streak she doesn't seem to be a very combative person. However, she has an easygoing tendency for violence in spades. She is cunning rather than intelligent. Yukiko works with cause and effect – plain facts bore her, while she regards things with no clear answer as pointless. She has an almost instinctual understanding of human nature, which occasionally helps her seem preternaturally wise. She prefers action to thinking, and is good at improvisation.