17 years old. A beautiful girl with glossy long hair, a curvaceous figure, and distinctively upturned eyes. Being at a rebellious age, she generally thinks of her older brother, Guest, as gross and claims to hate him; she never calls him "Big Brother." She hates her father even more, to the point of physiological revulsion. Apparently, Guest is at least better than their dad.

Real name: Kuniko Sakihama, 42 years old. She has a brownish-black short bob and stands about 155cm tall. She is slightly plump, as expected for her age. Her love for her husband cooled off long ago, but she treats him normally on the surface. She is close with Yuzu. She treats Guest normally as her son.