Yakumaru Itsuki

Ya (ヤっ), known as Ya-kun to her comrades is a character introduced in Toaru Kagaku no Accelerator. She is a member of Scavenger.

Appearance
Ya wears a loose square neck blouse and black spats. She wears a utility belt, likely where she keeps her vials of chemicals. She also wears a newsboy cap, where she keeps her hair in.

Personality
Though a little more serious than Naru, Ya still share the same childish aspect as her comrades. Like all members of Scavenger, she does her job of killing people and destroying things without remorse or guilt, willing to eliminate those who get in the way. Moreover, she also hates teachers and believes them to be the source of evil in the city.

Toaru Kagaku no Accelerator
When Nakimoto Rizou realizes that DA has become a liability he contacts Scavenger's liaison to have them eliminate the group. The liaison wakes them up and announces to them via an intercom that they have a job to do.

They are later seen again razing the entirety of DA's headquarters in sector 3's warehouse district, apparently killing many people in the process. It is Ya that tells them that they should make sure to finish their job as they would not be paid if they do not do so. Seike tells her that the place they destroyed wasn't the only targets and notes a mysterious bodybag with a girl inside it that DA took with them. They later track the surviving DA down using the Predator ability.

Later showing their disregard for their targets and people who get in their way, they destroy a small contingent of Anti-Skill they meet along their way. Naru later taunts the Anti-Skill that tried to contact them and later unanimously agree to finish their job as quickly as possible. They arrive in great force with Naru using her ability on paper explains as bombs against both DA (and their Tarantula mobile weapon) and the Anti-Skill that were fighting near a tunnel. Ya spends much of her time observing the battle. She is later saved by Seike when Hitokawa Hasami arrives with Estelle Rosenthal attacks them, much to her chagrin.

In the battle between Naru against Hasami, Estelle, and Yomikawa Aiho, she charges Ya to take care of a surviving DA member, the driver of the Tarantula. She later kills the man with her coolant but the body is destroyed by Naru and is later lectured by the other members for not properly killing him.

Abilities
It is not known if she has any esper powers herself. She however uses coolant to quickly freeze an enemy, killing them when their heart and brain freezes over. This coolant is of her own make, improved from the one that Academy City uses.

Quotes

 * (To her comrades, from Accelerator Manga Chapter 7): "This is a business. As the Scavengers, we were hired to eliminate the organization as DA. If we let the target escape, not only do we not get our money, but we're charged for breach of contract."