AppearanceEditFutaba is a young girl with medium hair, styled in thick, short pigtails on the sides of her head. She also has light-colored eyes.
When in Trigger Mode, like Nozomi, she wears a skinny black jumpsuit which has a purple design resembling a leotard on it, and also has her unit's emblem, over the left side of her chest. Unlike Nozomi's; however, her uniform has shorter, puffy sleeves, and similar legs. She also wears long, laced boots and long gloves, connected to her jumpsuit by suspenders of sorts.
She has a more serious personality, compared to her leader, but is eager for a battle. She apparently dislikes older people, other than her captain.
Nozomi Kako: Kuroe has a great deal of respect for Captain Kako.
- (About Shun Midorikawa) "That idiot... Why is he making his rival stronger?" 
- (To Yomi's Ace Idras) "No matter how many times you come over here, the end result is the same." 
- "Futaba" (双葉? ) means "bud, sprout", while "Kuroe" (黒江? ) literally means "black bay".
- She likes shiratama anmitsu (a type of dessert with agar jelly, fruit, red bean paste, and dango), oranges, and winning in ranks battles.
- She was with Midorikawa in a branch school deep in the mountains in primary school, catching fish and eating mushrooms.
- She does not "die" from eating Kako's failed fried rice.