(Image from Tsukasa Jun, not mine)
Family: Succubus
Type: Demon
A type of Succubi that live under a strict code that rule their lives, living in Samurai villages and other human sentlemnts, included ones ruled by the Order, who respected them either after of turn into Succubi. They were female humans in the past, living with a code that was originaly meant for men, but when the new Demon Lord took the throne, a Succubi pack asaulted their villages, turning them into lustful monsters. But either after this incident, they grew with the Bushido, the art of the sword, which helped them to control their monster instincts until today. Their teachings, which are more ancients than the former Demon Lord, teach them about how a warrior must act in the live, but with the rise of the new age, this code was alterated a little for adapt their new state to the Samurai Code. In the past, the Bushido teached them to use weapons as the Katana, a long one-edge blade and their signature weapon, and the Yari, a long spear with a small blade in the end, but the new code teached them to how treat a man in the bed, using their succubi abilities with knowlenge and servitude. Their ability in the use of weapons turned them into great warriors respected by many humans and monster girls, included the very own Order, who either declaring the Samurais as monsters, the members of the Order respect them. That's the reason of why they live not only in their villages, but also in human sentlemnts, and some of them are usually spotted in some of the Order's territories. Curiously, in this places nobody seems to argue about their presenceat first. After all, they're the only ones of the Succubi family that doesn't have tail, horns or wings, which can made difficult to identify them as monster girls.
Usually anybody can spot one of them on a road, walking or training alone, or in a sentlemnt resting or for bussines. They don't attack men very often, but if somebody challenge them in a duel, they gladly accept. Their battle abilities made them worth oppents for anyone that use a weapon, included weapon-user monstergirls as the Lizardman, either somebody says that a samurai was able to defeat a Minotaur in battle. When they fight against a man, the result can decide the Samurai's decission. If the man wasn't a worthly opponent, she will leave him and keep her way, but if she founds the man worth, or if she is defeated, she will then turn into the man's servant and sword. Their code forces them to find somebody to who serves, so when this happens, they enjoys having a man not as a husband, but as a master. After of this, is possible that other samurais can appear and join she in her debts, forming a bodyguard group under the first samurai's orders, but usually only happens if such master is the leader of a sentlemnt, but there can be exceptions.
But either with their strong will and their code, they're succubus, and sonner or latter they will feel the thrist for cum and spirit energy, affecting them slowly. One can spot a Samurai being affected by this when she began to unconsciously tease her master with small movements as shaking her ass or putting her hands on her breasts in his presense. If in some moment she began to have problems in her duty or she starts to say love words by accident, is that is near of have a sexual outburst. When she reach her limit, the Samurai will put down her own master and take her armor off, and have sex with him, revealing her Succubus part in all her glory, either during all day and night. When she got sattisfed and knows what happened, she will beg forgiveness from his master.
If he doesn't forgive her, she will take her belongings and depart his side, turning into a Ronin, a Samurai without master. After of it, she will learn that sex is more important for she than her code and will then turn more aggresive and have sex with any male that likes her or any warrior she defeats in battle, until the day she finds a new master that can help her to reclaim her original Samurai title. Until then, they're more dangerous, and either the Order tries to have an eye on them for avoid incidents.
However, if the man forgive the Samurai, she will be happy with his deccision and keep seving him as before. But if her master declares his love to her, she will reply his love with her own love, turing her master into her husband, turning her a very happy monster girl, with a lovely husband who will gladly help her with her sexual outbursts, but without forger her duty as Samurai. If she has other Samurais under her command, then she will ask to her now formed husband to have sex with them for prevent their sexual outburst. If the Samurai's husband is the leader of a sentlemnt or a city, she will turn into a Shogun, and will help her husband on the government of the city. When a Samurai turns into Shogun, the sentlement will turn inmediatly into a monster-friendly sentlement, and depending of how she and her husband govern the sentlemnt, the zone can turn into a 'bright green demon realm' or in a 'dark demon realm', but usually it turns more into the former than the later.
The Samurais don't have reasons for disrespect other monster girls. If they spot a monster girl trying to tease or assault their master or husband, she will challenge the monster girl, and whatever defeat the other monster girl or not, if she see her not worthly, she will do anything on her hand for shoo her away, either using her Samurai bodyguards for that. If she see the monster worthly, she will leave her be with her husband with the condition of be teached in a variation of her code, adapted for other monster girls. This usually generates an heterogeneous group of bodyguards and servants formed by Samurais and other monster girls that serves their master, without mind their family or type, but somehow they can't accept monsters from the Fungus or Slime family, and much less the Dark Slimes. There exist some rumors that if between the master's bodyguards is a Hellhound, the Samurai leader will made her more gentle, until certain point by their untamable nature.