Hagure Sisters

Botan Hagure and Kikyo Hagure are twin sisters and third-year students of Hagun Academy known as the Hagure Sisters.

Appearance
Though neither of their appearances being mentioned in the light novel, both sisters appeared in the anime and manga. Both have shown to be cute young women with a cheerful demeanor and is shown to be dressed in the Hagun Academy's female uniform albeit they wear black shorts under their skirts. The only difference being that Botan has blue hair, while Kikyo has red hair.

Personality
Both of the Hagure Sisters are shown being kind and friendly, but both have shown to be quite serious and scary as shown when Stella admitted that she doesn't gain weight no matter how much she eats yet still maintains her beautiful figure to the point where even Ikki didn't get involved even when Stella was being "examined". Though they were confident in being able to compete in the Seven Stars Sword Art Festival that confidence was shattered after seeing the strength of Akatsuki Academy.

History
Not much about their pasts has been revealed.

Although their appearance is not described in the novel, they appear in the anime on numerous occasions, but they were officially named and revealed in the season finale as representatives at the Seven Stars Sword Art Festival for Hagun Academy.

Representative Coronation Ceremony
The Hagure Sisters are first seen during the announcement of the Representatives of the Hagun Academy for the Seven Stars Sword Art Festival.

Training Camp and Scheme
The Hagure Sisters are seen training against Ikki, in a two on one mock battle. Ikki was able to easily defeat both Hagure Sisters after using one to hit the other. They are then lectured by Ikki on what they did wrong.

Akatsuki Strikes
The Hagure Sisters, as well as everyone else who had participated in the training camp, were on the bus when they found out that Alice was an assassin for Akatsuki. The Hagure Sisters did not trust Alice after hearing this but decided to go with Ikki's judgment of trusting him anyway. The Hagure Sisters then arrived at a destroyed Hagun Academy and were able to defeat the Akatsuki members who had attacked the school. Alice is then stabbed by Amane multiple times and it is then revealed that the real Akatsuki members were hiding as the ones that were knocked down were just wooden puppets.

After Stella had lost her fight with Ouma, and Touka knocked her out, Touka had given Stella's body to them so they could run away together. They agreed and ran as far as they could before they are found by the Akatsuki members. The Hagure Sisters, however, are saved by Nene who had was able to hold off most the members by simply using her gravity manipulation. The Akatsuki members eventually retreat after Hiraga points out that they had done what they needed to do. The Hagure Sisters, after the fight with Akatsuki, realized they could not compete in such a tournament and have decided to drop out of the Seven Stars Sword Art Festival.

Rising Spirit
The Hagure Sister arrive at the Festival and, along with other people, help Ikki train for the finals of the Festival, where he will face Stella. They are both defeated by Ikki in an unshown mock battle.

Botan Hagure
Penetrate Manipulation: Botan's ability as a Blazer. She is able to manipulate the concept of "Penetration", as such her bullets were able to pierce through the enemies who were lined up from front to back.

Skilled Marksman: Botan is shown to be able to pierce several enemies in a line after her twin sister had moved aside to give her a chance to shot, showing her expert timing.

Expert Combatant: She has shown to be a skilled combatant, able to win 20 matches and become one of the six competitors for the Seven Stars Sword Art Festival, though Botan lost her confidence after noticing the difference between her and Akatsuki. She is later shown to be capable of defeating the criminal Blazers who escaped using her Device.

Kikyo Hagure
Speed Enhancement: Kikyo's ability as a Blazer. She is able to enhance her speed.

Skilled Spearmanship: Kikyo is shown to be skilled in using her spear, as proven when she was able to use it to her advantage against several criminal Blazers.

Expert Combatant: She has shown to be a skilled combatant, able to win 20 matches and become one of the six competitors for the Seven Stars Sword Art Festival, though Kikyo lost her confidence after noting the difference in strength between her and Akatsuki. Despite not being in the Seven Stars Festival, she took Ikki’s advice to heart letting her deal with a large number of criminal Blazers that surrounded her.

Botan Hagure
Unnamed Handgun: Botan's Device takes form as an unnamed handgun.

Kikyo Hagure
Unnamed Spear: Kikyo's Device takes form as an unnamed spear.
 * Instant Acceleration: Her Noble Art, which lets Kikyo move at high-speed letting her launch an attack that has been described as a supersonic charge. During the Special Convention, she is shown to be able to use it to move back to avoid a sudden attack, its attribute to let her move fast without needing gain more speed by running, a strong point that is noted to be similar to the Twin Wings' Swordsmanship.

Trivia

 * Botan's given name (牡丹) means "Peony" and Kikyo's given name (桔梗) means "Chinese Bellflower".
 * Their surname (葉暮) means "Plant Live", which references to their names both being a kind of plant.