Nao

Nao is one of the main characters of The Vampiress and a Kitsune. Nao is usually calm, polite, and gentle to everyone, with a special soft spot for Tsubaki Tachibana. He blindly obeys her like a "dog" and always tries to protect her, even if his own life is at risk.

Personality
Before Nao met Tsubaki, he was a person with no identity, no sense of self, no feelings. To gain his freedom from the twisted household that never gave him the nurturing he needed to develop feelings, he created a persona that allowed him to fit naturally into any type of situation; targeting ever more powerful women of the house to help him achieve his goal. As he wrote letters to Tsubaki at his former master Inari's command impersonating Inari, Nao found himself changing. He realized he was becoming a kinder person, someone who could feel, because of this interaction with Tsubaki - at first only from imitating her, and later noticing his own unique feelings.

Currently, he is calm, sweet, caring, possessive, and a little self-defeating. Despite his innocent and collected demeanor he is shown in later episodes to be a pervert. He is clearly obsessed with Tsubaki, as evidenced by the huge poster of her he keeps in his secret room. Nao's compassion-fueled willingness to do anything for her is demonstrated by his response to the two men who insulted her.