Yūko Kumagai

"Just a few seconds. That's all I need. Just a few seconds. If I can only stop Murakami..."

- Yūko Kumagai

Yūko Kumagai is a B-rank Attacker and a member of Nasu Squad.

Appearance
Kumagai is a light-skinned, slender, if curvaceous, girl with messy, wavy chin-length black hair, and narrow green eyes. When not on active duty she appears to favor casual, comfortable clothes, such as long-sleeved, dark-colored shirts which let her thin necklace and occasionally shoulder straps show. She also appears to favor jeans. Her uniform consists of a futuristic-looking white body-fit top with a square collar, purple gloves, an indigo belt that wraps partially around her waist, and a shoulder strap exposed on her right side. The uniform sports six fake buttons arranged in two columns of three and a seventh right underneath the collar, on the right side; on the left is Border's emblem. The attire is completed by black pants that connect into knee-high purple boots.

Personality
One of Kumagai's defining traits is her determination. Despite being aware of the gap in strength between herself and Kō Murakami, she resolved to face him nonetheless, steeling herself so as to check her doubts, and smiled as she remembered her captain's incitement right before the fight started. She is also persevering, giving the fight against Murakami and Yūma Kuga her all and making the first move against the former when the latter left, another instance of her fearless pragmaticism against adversity. Her tears after her defeat were due at least in part to the deep bond she shares with her teammates and their vow to reach the top tier of B-rank before the end of the season. It is worth noting that Kumagai never displayed any animosity against her opponents, not even the neighbor Wen Sō.

Quotes

 * "Just a few seconds. That's all I need. Just a few seconds. If I can only stop Murakami..."
 * "Of course this wouldn't be that easy."
 * "He'll do it. He'll make the move that'll tip the balance. I know he will..."
 * "This is the first time I've really used a shooting Trigger. Imagining Rei's fighting style helps me move easier."
 * "Keep hammering him just outside his range until the Raygust cracks!!"

Trivia

 * "Yūko" (友子) means "friendly child", while "Kumagai" (熊谷) means "bear valley".
 * Kumagai likes apples, meat udon, and all kinds of sports.
 * Her Japanese voice actress, Umeka Shōji, also voices Mizunuma, Yuu Kunichika and Itsuki Fujisawa.