Setsuna

is the deuteragonist in the anime series Hanyō no Yashahime.

History
Setsuna is a half-demon demon slayer who works under Kohaku. She was separated from her older twin sister Towa when they were both 4 years old but was reunited with her after traveling to the future with her cousin Moroha.

She seems to have difficulty believing Towa is really her sister.

Personality
She has a calm, unflappable personality much like her father, Sesshōmaru. She also seems to have some sort of sleep-related childhood amnesia.

Physical Description
Setsuna has black hair with a hint of red, and purple eyes.

Powers & Abilities

 * Time travel:

Moroha
Moroha is her paternal cousin.

Towa
Towa is her twin older sister.

Sesshōmaru
Sesshōmaru is her biological father.

Inuyasha
Inuyasha is her paternal uncle.

Kagome Higurashi
Kagome Higurashi is her aunt-in-law.

Trivia

 * Setsuna is the only known demon slayer who is not a full human.
 * Unlike most of the others hanyō, including her paternal uncle Inuyasha, Setsuna had no visible physical indication of being a half demon, such as dog ears. However, she has a mokomoko that crawls from her right shoulder and splits in two in the middle of her back.
 * Despite being an Inu-hanyō like her uncle Inuyasha, she and Towa seem to age at the same rate as humans.
 * Setsuna's name, like her sister Towa's, is homophone with a time word, "moment" or "an instant". This is probably an allusion to the fact that both sisters travel through time.

Quotes
To be added