"Ahh, I can't take it anymore!! At this rate, someone is going to steal you from me!! I'll just have to take you for myself here right now!! Darling let's do it in front of everyone and make them all give up right now."

Miia is a Lamia (Snake Girl) and the first girl to be placed with Kurusu as part of the Cultural Exchange Between Species Bill. After experiencing Kurusu's kindness firsthand, she has fallen head over tail in love with him to the point of trying to seduce him at almost every opportunity or otherwise jealously coveting his attention. She always refers to him as "Darling", even when speaking to others about him.

Miia is a beautiful Lamia with long bright red hair and amber eyes with slitted snake pupils. Her ears are large, pointy and red, and she has fangs and a long tongue. She also has small scales on her cheeks and wears a yellow 'D' clip on each side of her head (from the front the clips resemble a snake's eyes while her hair acts as the fangs). She also has large breasts and a curvy figure (upper body-half).

Her most noticeable physical trait is her long, red snake tail. Her full length is said to be 8 meters (26 feet), suggesting her tail is approximately (22 feet) long.

The clothes she wears changes throughout the series but she usually wears a miniskirt along with different types of tops.

As an exchange student from a species distinguished most by its seductiveness and high drive, Miia possesses a very lascivious personality. Initially, Miia is introduced as a cheerful yet ditsy girl whose transgressions of human norms (i.e: sneaking into Kimihito's bed and nearly strangling him in order to stay warm) seem attributable to mere naivete. However, as the series progresses, Miia increasingly reveals herself to be a calculating and possessive individual whose repeated transgressions against humanity's standards of behaviour are rooted in a single-minded obsession to make Kimihito hers at all costs.

Of all the girls at Kimihito's residence, Miia is by far the most domineering and hot-tempered. Whenever she feels that her claim on Kimihito is threatened, she is quick to lash out at the other girls and even Kimihito himself.

(Lambia's sure are something, huh?)