Yui Tatara

Yui Tatara is a member of Rebellion who is hired to serve as a student for Akatsuki Academy.

Appearance
Yui is a petite girl with black hair and purple eyes. She is dressed in a gray winter clothing, a scarf and a gray hat with a skull design.

Personality
Yui is shown to be extremely ruthless and sadistic, wanting to kill someone just to vent off her stress. In fact, Ikki upon his first encounter mentioned that he could only sensed malice from the petite girl.

History
Yui has been known to be killing people since she was young before she got hired by Bakuga Tsukikage to be a "student" of her Akatsuki Academy.

Akatsuki Strikes
Yui was first seen, along with her fellow Akatsuki academy members, going toward Hagun academy. She was the first to try and attack, taking on both Ayase and Yuuri and had some how defeated them both using an unknown ability, named Total Reflect.

Yui was then seen, with her fellow Akatsuki members, about to clash with the other Hagun academy students, however, Akatsuki academy was betrayed by Nagi who had concealed their movements and allowed the Hagun students to defeat them. However, Yui and the other's were revealed to be hiding in a different space.

After Ikki, Shizuku, Stella and the Hagure sisters had left the scene, Yui and the other Akatsuki members had defeated the student council members, easily, and had decided to continue their onslaught, by going after Stella and the Hagure sisters.

They had eventually found the sisters and Stella but their efforts to hurt them were impeded by Nene, who was able to single handily stop Yui, and most of the Akatsuki members, besides Ouma, with her gravity ability. Yui and the others had decided to retreat, as they had completed what they wanted to do.

Abilities
Reflector: The ability to reflect all their opponents’ attacks back at them; their expertise lay in the way their ability would increase in power the stronger the attacks received were.

Master Assassin: Having been trained since 3 years old, Yui is noted to be an exceptional assassin for Rebellion.

Device
Sweeping Centipede: Yui's Device which takes the form of a chainsaw.
 * Total Reflect: Yui's Noble Art which allows her to reflect her opponent's technique back to the opponent. The ability depends on the power of her opponent's offensive strength, growing in proportion to the opponent.