Futatsugi is a teenage girl of average height. She has shoulder-lenght brown hair, which is somewhat messy, and is curved-spiked in the back. She also has purple eyes. She is usually seen wearing her school's uniform, a dark blue blazer and dark blue necktie with white stripes over a white polo and a gray-blue skirt.
Futatsugi is a happy and excitable girl, who quickly befriends Yūma.
They seem to be good friends.
They seem to get along.
She quickly befriends him, especially after he scares away the bullies in the school's roof.
She has a great deal of respect for him.
- "Futatsugi" (二ツ木?) literally means "two trees".
- Her Japanese voice actress, Yurie Kobori, also voices Mira and Hikari Nire.