Character: suu (monster musume)

One of the fictional characters in the mixed media series Monster Musume no Iru Nichijō and the fourth monster girl to move in with Kimihito, albeit on a completely unofficial level.

Suu is a slime who can shape her body into practically any form. However she is also telepathic and can use that ability to attain a shape that befits her situation. Suu's preferred form is varied on her total volume of water. When she has taken in a great deal of water she takes the form of a buxom, mature woman of average height. If she is low on water, or feeling playful, she will assume a smaller, demure form of a high school girl. Either way Suu prefers a feminine form though her actual gender is neutral. As a slime Suu was not actually permitted into the Interspecies Exchange Program, as the "non-humanoid" species were reserved for a later date when the program had shown more success in the human world. As such she is considered a kind of fugitive in the human world.

Outwardly Suu seems simple minded, kind, and open. She communicates slowly and deliberately, like a child, but can use her telepathy to convey her meaning much easier if need be. However it is shown that these characteristics of child-like innocence are actually a ruse. Suu is quite intelligent and quick thinking, having quickly taken charge one day when Kimihito became very ill and curing him rapidly. She revealed to the others that she had fallen in love with Kimihito but when later confronted for it she resumed her innocent mimicry.