Nanaumi

Nanaumi (ナナウミ, Nanaumi) is a girl from the Kina Kingdom who joined Hakuryuu Ren during the war of the Kou Empire.

Appearance
Nanaumi usually has a grin on her face, showing her blackened teeth. The right side of her hair is white with a small section of black, and colors are opposite to her left. She has a large chest and her clothes mimic the black and white scheme of her hair. Thus far, she has never been seen without her eye mask on.

Personality
Nanaumi is loyal to Hakuryuu and refers to him as "majesty". She seems to like war as she claimed to be excited at the prospect of the incoming war. Anything else about her remains a mystery.

Hakuryuu Ren
Nanaumi is loyal to Hakuryuu as she pledges to fight alongside him.

Takeruhiko Yamato
Nanaumi appears to be very fond of Takeruhiko as when he appeared on the battlefield, she squealed in delight that she had been waiting for him.

Trivia

 * Her name, when written as 七海, means "Seven Seas", possibly alluding to her allegiance to the Seven Seas Alliance or Sinbad.
 * Nanaumi's black teeth is a practice of Ohaguro, or dying one's teeth black. This may refer to the ghost story Ohaguro Bettari, which is about a beautiful looking ghost who pranks men.