"I won't humiliate the name of Sabertooth. It means I have to win."
Yukino is a slender, well-endowed young woman with short, light-colored hair and fringes framing her face. She wore a black rose ornament (blue in the anime version) on the left side of her head. During her participation in the Grand Magic Games, she donned a cloak clasped together by a star-shaped clip, with feathery protrusions that cover her chest, shoulders, and mid-back, over her blouse and shorts. The cloak flared by her feet, where it was divided into flowing sections secured by ribbons. She wore a black pair of socks that stopped at her mid-thighs.
Her Sabertooth guild stamp was located on the left side of her stomach.
After she is excommunicated from Sabertooth, she wears a more casual attire, which consists of a plain white tank-top, with black straps, and a plain black mini-skirt.
As Yukino became a soldier of Arcadios, she wears a dark soldier uniform after the third day of the Grand Magic Games. She currently wears her black rose oranament on her left side of her head.
Yukino is shown to be quite self-confident. She has immense faith in her abilities as a Mage, and takes pride in being a member of Sabertooth -even to the point of betting her life for it. However, while not as cocky as Sting Eucliffe, she does prove to be a bit overconfident, the mentioned bet being made just for the sake of it. She had thought that she had won the bet right from the get go, based on her own knowledge of her power alone.
On the other hand, Yukino highly respects her opponents, and acknowledges the extent of their powers. She is also very polite to others, referring to Lucy and her teammates with the suffix "-sama" despite having just met them.
Despite Yukino's overconfidence and tenacity, she is also very sensitive. The humiliation of having been stripped naked and removing her guild mark herself devastated her self-esteem greatly. Upon Natsu showing his kindness to her, Yukino broke down and confessed she is rarely ever treated this way.
According to what she told Lucy, Yukino once had a family consisting of her parents and an older sister, Sorano Aguria. Sorano supported her through most of her childhood in which Yukino felt useless to her family and would always be scolded by her parents. One day, a group of Zeref's followers attacked her family. Her parents were killed and Sorano was captured. Yukino just barely managed to survive the attack. Since then she wishes to stop Zeref in any way possible, even going back in time and preventing him from rising to power in order to change history.
Grand Magic Games arcGrand Magic Games against Mermaid Heel's strongest Mage Kagura Mikazuchi, and is determined to win to maintain Sabertooth's title as Fiore's strongest guild. She enters the arena and respectfully greets Kagura and suggests making a bet like the other competitors did in all of the previous battles of that day. After Kagura initially rejects the bet, Yukino then says that she will bet her life on the battle and Kagura then accepts the terms. After the agreement the two begin to battle. Throughout the course of the battle Yukino summons Pisces, Libra and Ophiuchus; a mysterious 13th Gate Key, but Kagura easily defeats her and her Celestial Spirits. Yukino falls to ground and begins to tear up over the result of the match and the overall result of the 2nd day, as Sabertooth had gained no points. Before leaving, Kagura informs Yukino that her life now belongs to her with Yukino crying on the ground as she accepts the end result of their bet.
After failing to win, Yukino faces the anger of Sabertooth's Guild Master, Jiemma. Displeased by the failure of Team Sabertooth on the second day, Jiemma throws grapes at Yukino's head and forces her to strip, telling her to erase her guild mark, thus banishing her from the guild. She is later seen standing outside Honeybone Lodge, the current lodging of the Fairy Tail guild over the period of the Games.
Lucy, Natsu and Wendy invite Yukino inside to speak with them. Yukino reveals that she has sought out Lucy to give her the Pisces and Libra Celestial Spirit keys. She explains that she has been admiring Lucy since she first saw her battle during the first day of the Grand Magic Games. She states that if Lucy takes her keys, the twelve Zodiac keys will finally be together, and that Lucy will "open the gate to the changing world". Lucy, however, refuses to take her keys, stating that Celestial Spirit Magic is all about trust and bonds, and that Yukino is obviously attached to her Spirits and loves them deeply. Though shocked by this reply, Yukino accepts Lucy's answer and leaves, claiming that the twelve Zodiac keys will eventually come together when the time is right.Before making it down the street, Yukino is chased by Natsu, who wishes to thank her for the offer she made to Lucy, and apologize for his previously rude behavior towards her. After hearing Natsu's words of kindness, Yukino breaks down into tears, confessing to Natsu and Happy that she was kicked out of her guild for losing in her battle against Kagura, detailing how she was forced to strip and remove her mark, and how she felt so humiliated. She then states that she does not have anywhere to go now that she is no longer a part of Sabertooth, and is surprised to see Natsu's angry reaction at her situation.
The next day, she walks through town with her luggage. She overhears the intrusion at the Sabertooth lodgings and looks back at the Domus Flau, smiling and wondering if it was Natsu who did it. When the third day of the Grand Magic Games comes to a conclusion, late at night Yukino dresses herself in a dark soldier-like uniform and goes to formally visit Arcadios, requesting to speak with him.
On the night of the fourth day of the Games, Yukino stands in Mercurius, pondering the fact that Natsu beat her old guild mates Sting and Rogue in a tag team battle that very day. When asked by a nearby guard whether she has mixed feelings about the results, Yukino replies that she has no attachment to the guild any more, continuing that she is not used to being addressed as "Sergeant". The guard replies that her involvement in the Eclipse Plan deems her worthy of such a title, and the two begin to speak of Arcadios, with Yukino commenting that she believes him to be clumsy, as he is trying to save the world without anyone being aware of it.
On the night of the fourth day of the Grand Magic Games, Yukino travels with Arcadios underneath the Domus Flau, where they see the Fairy Tail Mages summon forth Zirconis, a huge jade dragon. She listens in as Zirconis explains the history of the dragons to the group, as well as Acnologia's past of once being a human who became a dragon and the origin of Dragon Slayer Magic. When Zirconis fades away and the Mages wonder about what he said, Yukino reveals herself to the Mages alongside Arcadios, greatly surprising all those present and Lucy in particular.
Yukino watches as Arcadios explains why they were there. She asks Lucy to join them, and if their plan is successful,they might be able to defeat Acnologia. Soon, when they arrive at Mercurius, she asks Lucy if time flows differently in the spirit word, to which Lucy says yes. So Yukino told her that it is the reason they need a Celestial Spirit mage. Suddenly, the royal army came and Datong said to arrest her, Arcadios and Lucy. As she was being captured, she asked why since he was also on Arcadios' side.
Later, at the prison, Yukino gets depressed, saying that she attracts bad luck. Lucy tries to encourage her and asks her for help to escape the prison. When Lucy starts to express her feelings about the eclipse plan, Yukino says that the mission should be executed. She starts telling Lucy about her elder sister, Sorano, who helped Yukino alot but vanished because of Zeref. She wonders if Zeref had not been alive then, that if Sorano would still be with her. 
In her cell, Yukino sits on the ground soon hearing the sound of Lucy's' name being called she looks up to find Mirajane, Wendy, and Natsu standing outside the door. Natus soon breaks down the door allowing Yukino and Lucy to escape. Standing outside the cell, the floor collapses beneath them landing them in an underground cavern. Looking around, she hears a strange voice announcing this as "Hell Palace." Noticing a girl above Yukino recognizes the girl as the princess of this castle.  Yukino then spends some time looking for a way out, along with the Fairy Tail Mages.
Magic and Abilities
Celestial Spirit Magic: Yukino uses Celestial Spirit Magic. At the moment, only three keys are known to be in her possession. She has obtained two gold keys to summon forth Pisces and Libra and holds the thirteenth zodiac key of Ophiuchus. She is also able to easily open two gates at once, much to the surprise of the crowd, as seen during her battle against Kagura on the 2nd day of the Grand Magic Games.
- Multiple Summon: She has the ability to summon multiple Celestial Spirits at the same time.
Weapons & Items
- Pisces: The first Celestial Spirit that Yukino summoned. Pisces is two giant eel-like fish that can float and attack quickly.
- Libra: A woman holding two scales. She has the ability to use Gravity Change which can be used in a combination attack with Pisces.
- Ophiuchus: A Giant Serpent, known as the Thirteenth Zodiac Key.
Battles & Events
- Sky Labyrinth
- X791 Grand Magic Games Inauguration
- Kagura Mikazuchi vs. Yukino Aguria
- Yukino Aguria's Excommunication
- Arrests at Mercurius
|Guild Master||Sting Eucliffe|
|Mages||Dobengal • Frosch • Lector • Minerva Orland • Orga Nanagear • Rogue Cheney • Rufus Lore • Sorano • Yukino Agria|
|Twin Dragons of Sabertooth||Rogue Cheney • Sting Eucliffe|
|Team Sabertooth||Minerva Orland • Orga Nanagear • Rogue Cheney • Rufus Lore • Sting Eucliffe • Yukino Agria|
|Left Guild||Jiemma (Guild Master) • Rogue Cheney (Future)|