Dragon

Encyclopedia Entry:
The highest level of monsters, combining a strong body with high intelligence. They are fearsome monsters with sharp claws that can tear through steel and they breath fire that can incinerate anything. They have been titled as “rulers of the earth” because of the enormous power they possess. They take an arrogant, high-handed attitude towards not only humans, but other monsters as well. They have taken on the form of women due to the Demon Lord’s power, but because of the enormous power they already possessed from birth, they haven’t been completely subverted by her power. They can even temporarily change into the form of the enormous dragons from the time before the new Demon Lord took over. Also, they love treasure, including precious metals, jewels and rare magic items. Their lairs are full of all of the “treasure” they have collected.

Although they have high intelligence, their behavior and emotions are strongly governed by their instincts and they can’t go against them. They are “rulers of the earth” and they look down on humans as worthless, insignificant beings. They try to act uninterested, but because of the influence of the demon lord’s power, by instinct they can’t help but recognize human males as “males of their race.” For that reason, exactly opposite of their attitudes, their instinct gives them a powerful aversion to harming humans. Because of it, they can’t harm people even though they have the power to take a human life effortlessly. They even end up having endearing feelings for humans.

When they find a man who strikes their fancy, they can’t go against their urge as monsters. They take him back to their lair, give in to the urge and have sex. The men taken away by them are treated as their most valuable “treasure” and are not allowed to leave their sight.

However, if their instincts ever recognize a human man as “a male more powerful than themselves,” then they’re ruled by an instinct that forces them to “obey the male, have sex with the male and bear young.” If this happens, there’s not a trace of the “dragon, ruler of the earth” left. They fawn on their husbands and strongly seek sex, becoming mere “female lizards.”

Note
In Monster Girl Encyclopedia I profile, there's mention of how Dragon can return from dead as Dragon Zombie. None of English translation include this info.

Subspecies

 * Ryu
 * Wurm
 * Wyvern
 * Jabberwock