Mina Tatebayashi

Mina Tatebayashi (館林 水奈, Tatebayashi Mina) is half-mermaid half-vampire yōkai child living in Sakurashinmachi. She is the twin sister of Kana Tatebayashi and their guardian is Shidō Mizuki.

Appearance
She is wearing a white jacket.She has gray hair and blue eyes.

History
Mina along with her twin sister Kana were born to a vampire police officer and a mermaid. Shortly after they were born, both parents died in an incident, leaving them in the care of Shidō Mizuki who feels guilt over not being able to protect their parents.

Abilities
Water Induced Growth: Exposure to water will cause Mina to grow, giving her the appearance of a teenager or young adult.

Enhanced Endurance:Due to her vampiric and mermaid origins, Mina is able to survive incidents which would kill regular humans.