Miia

Miia is the main female protagonist of the story. She is a Lamia (Snake Girl) who has been given to Kurusu as part of the "Cultural Exchange Between Species Bill", she later falls in love with him after staying with him, to the point of wanting to "do it" with him. She always refers to him as "Darling (ダーリン Darlin)" even when speaking to other's about him.

Personality
She is incredibly enthusiastic about the smallest things and has a very bubbly and slightly child-like nature. She is also very flirtatious, trying to seduce Kurusu on multiple occasions, and under the effect's of a full moon, try's to outright rape him.

Despite her naturally cheerful and somewhat childish nature, Miia is not as emotionally immature as she would appear. She has, on rare occasions, become upset and angry at other people to the point of almost striking them with her tail.

Skills and Traits
Due to being half-snake, she is naturally skilled at climbing trees. Since she is part reptile, she is also a poikilothermic. Also, the tip of her tail is very sensitive. At a certain time, like a normal snake, she start's shedding her skin, witch according to her, is more embarrassing then being seen naked.

She is also strong enough to crush metal pipes without noticing when under the effect of full moon.

Plot
Miia is given to Kurusu as part of the "Cultural Exchange Between Species Bill" by Sumike, at first she thought that since she was half-snake, he would be afraid of her, however he was very kind to her and put much effort into making sure she was happy, to the point of remodeling many parts of his home for her.

As time passed, Miia eventually fell in love with him, although Kurusu seems to feel the same way, there is a stipulation in the exchange program that prohibits interbreeding between humans and beast creatures. Violating this law would result in Kurusu being severely punished. This doesn't stop Miia from making advances on him whenever she get's the chance.

Trivia

 * She sometimes has a habit of squeezing her coils around Kurusu too tight.
 * A running gag throughout the series is that when ever she attempt's to strike someone with her tail, she end's up hitting Kurusu by accident.
 * The way she refers to Kurusu as "'Darling (ダーリン, Darling)" is very similar to how Lum refers to Ataru in "Urusei Yatsura".
 * The tip of Miia's tail is very sensitive, much like Lala from To LOVEる.
 * The length of Mia's tail is very inconsistent, varying from 6 to 7 feet to closer to twenty feet.