Suu is a slime girl from Monster Musume no Iru Nichijou, known for her cheerful, curious, and highly adaptable nature. She can change shape, absorb liquids, and stretch or split her body in useful ways, which makes her both adorable and unusual among the monster girls. In the series, Suu is one of the main members of Kimihito Kurusu's household and adds a playful, innocent energy to the group, often contributing to the comedic and slice-of-life situations that define the story.