Merril

 is Chirel's younger sister. After Chirel is traumatized by Reina and is unable to let girls hug him, Merril goes to confront Reina and meets the Crimson Vow.

Appearance
She looks about ten years old and wears the clothes of a normal townsperson. She also has a small knife strapped to her waist. Her hair is parted down the middle and wrapped into a bun on either side.

Trivia

 * Merril rode on the back of the Elder Dragon Shelala to confront Reina.
 * Merril has a brother complex for Chirel.
 * Her hair was arranged the way that it was so that she could hide her horns and feign being a human.