Yuri is the great-granddaughter of the Great Family Head Ha Yurin. The blood of the Ha Family runs very strong through her veins, so much that it is said that Yuri and Yurin greatly resemble one another in appearance. This is why Yuri's sobriquet is "Black Snakehead", in reference to her elder.
By climbing the Tower and becoming a Ranker within 200 years and by becoming a High Ranker within 100 years after becoming a Ranker, Yuri Zahard was recognised as a prodigy, even among the Zahard's Princesses and was bestowed with a 13 Month Series. In the last 500 years she was the only Princess to become a chosen Princess and to receive a 13 Month Series, the Black March. During her time as a Regular she did not board the Hell Train, since because it was "troublesome". 
Despite her Ranking compared to other Princesses, she has been revealed to be one of Zahard's favoured daughters, second only to Adori, due to her rising ranking, popularity and performance in recent duties concerning the 13 Month Series.
When she heard an Irregular had come into the Tower, she immediately went down to Headon's Floor with Evan Edrok and had a dramatic meeting with Baam. She decided that he did not seem that powerful, and criticised Headon for giving him a tough test. When Headon said he would not change the test, but was willing to bend the rule a little, she chose to lend Baam the Black March so that he had a fighting chance in the test. When Baam disappeared with Black March after popping the Ball, she organised a team of Rankers to invade Evankhell's Floor and to find Baam and her weapon.
She was later seen with her newly formed team of Rankers making their debut. Her team was seen resting on the corpse of some gargantuan monster. She seemed increasingly annoyed with how long it was taking to get to the Second Floor.
In the Submerged Fish Test, she finally found the Regulars in their current testing location, and stumbled upon Ship Leesoo, asking him for directions. She eventually found and witnessed Ren attacking Androssi and Anak. She interrupted the slaughter, pelting Ren with stones from the shadows before she made yet another dramatic entrance, confidently introducing herself as the "two ugly idiots' 'older sister'". Having struck fear and excitement in Ren's heart, Ren shortly stuttered and seemed a little off-balanced by the appearance of such an unexpected threat. Realising the situation and trying to make the best of it, Ren quickly stated that as a RED unit, he had to carry out his mission in the name of Zahard. Yuri threatened that she would kill him if he didn't back off, to which Ren tried to suppress his excited murderous urges and failed. He set loose dozens of Shinheuh which she dispatched within the blink of an eye. Saying that it was now self-defence she attempted to strike him down.
However, she was prevented from finishing him off, by Evan, as it would become complicated. She instead picked up her Black March and, as she seemed to walk away without further ado, she gave Kurudan the signal to kill Ren. In the container "Yuga's" last moments, Ren described Yuri as truly fearsome, but then immediately (but shortly) as he said in its own death (at least the container's), he released the Bull in order to make sure of Baam's one. Yuri, over pissed from this news, decided to destroy the entire arena and end what she felt was a ridiculous test. As Yu Han Sung tried to intervene, Yuri mentioned she would kill him once she is done with the arena (to the unease of the target). Evan told her to stop, telling her this was a test set by the Guardian of the Floor himself, and this was all part of his plan. Yuri then asked Androssi whether Baam could face the Bull or not, to which she confidently replied he could, as the climbing Princess promised to go on a date with him once he returned. A little unsettled by all the information, Yuri finally decided to give in, calling out to Leesoo to give a message to Baam, consisting of a one winged Wingtree symbol and the advice to go to the 77th Floor as "Urek Mazino is waiting". She then proceeded by taking the Green April, much to Anak's dismay, but promising to give it back once her "niece" was strong enough to "bear its burden", and come back looking for it... with Baam. She then left the scene, disappearing into the shadows.Repellista Zahard. As she was complaining about the bothering etiquette to Alumik Edrok, she met another chosen princess, the extremely haughty Koon Maschenny Zahard. They had then a brief exchange of praises and taunts over the 13 Month Series weapons they both have in their possession.
After this, Alumik candidly stated that they get along so well and offered to make tea. Maschenny bluntly refused and made another comment that due to her sister's youth, the latter should rather have a sweet hot chocolate, right before her (intended dramatic) leave. Yuri then proceeded on to Repellista's room, where she asked for help in finding Baam back, giving the reason that he is "a total hotty". Repellista accepted, at the condition that Yuri would find an object of value for her in return.
Yuri and Evan arrived at Repellista Zahard's vacation house where they were greeted by royal guards outside. With the guards refusing to listen to her commands or permit her to pass peacefully, Yuri went on the offensive and immediately proceeded to fight them all, defeating them in a matter of seconds. She then jumped into Repellista's room through her window and wrestled her sister for giving her such a welcoming.
Repellista then told her that she had found the boy she was looking for and to get to him she would have to get on the Hell Express. Yuri retorted that she couldn't just get on due to it being for Regulars but Repellista replied that she would find a way before giving her an Express Ticket. Yuri then left and dragged Evan away before leaving Repellista's vacation house. On their way, Yuri confirmed to Evan that Baam was alive and she was going to find him.
Having forcibly boarded the train as it was warping to the next Floors, Yuri grumbled that it would take forever to find Baam with the pathways constantly shifting and berated Evan for not being able to help.
Having arrived on time, Yuri was visibly happy when she saw Baam alive and well. With the rules of the Dallar Show explained, Yuri asked the conductor what it meant by a "death match" and he replied by revealing the true nature of the duel as well as the fact that Twenty-Fifth Baam was truly "Jyu Viole Grace", a FUG Slayer candidate. As a result, Yuri struck a riskily deadly deal with Pedro, which he accepted.
When the first round of the Dallar Show ended, Yuri taunted Pedro but the latter merely stated there were still two more rounds to go. In the second round, she and Evan observed Baam as he took down Buelsar Elliot and wondered how he had got so powerful. Yuri then complained about the scenes she got to watch and asked for more of Baam. She and Evan then watched as Baam encountered Hoaqin and quickly realised the latter was from the Arie Family after he used a special sword technique.
With the start of the third round, Pedro told Yuri that the game would be ending soon and asked if she was nervous but she confidently replied that she wasn't. After the appearance of Hoaqin's "final clone", Yuri decided that Pedro had abused his power. Revealing that her and Evan's 3D glasses recorded and processed evidence of his crime to the Tower's authorities via Repellista Zahard's Opera, Yuri prepared to engage Pedro in combat, stating that she would first "smash him to bits" and then make him reveal Baam's location.
Both start fighting, and after Yuri beats Pedro´s observer, she and Evan ride the flowing acid to save Baam, Koon and the rest. Once Yuri and Evan arrive at the Train's core, she enveloped them in a Shinsoo bubble and pulled them into safety. Later, Yuri hugs Baam telling him to rest.
Koon reveals that Rachel is going to the 43rd Floor and that he and his teammates will follow her. Yuri tries to dissuade them saying that the 43rd Floor is impossible for a D-rank Regular to survive in. Koon and Baam and everyone else are undeterred. Yuri decides to join them so she can be assured of their safety. However she has one condition so that she can make sure that everyone who comes along will survive and not be a burden. When the Hell Train arrives on the 39th Floor Baam and his friends have to steal Kaiser´s name or she will not let them come.
A man shows up at the auction saying that he will win because he has the Princess on his side. After the auction is over the man calls Princess Yuri and report the person on sale was bought by someone else. Yuri is furious until the man tells her that the person on sale was not a Slayer Candidate but a member of the 10 Families. She then smiles and remarks that she thinks Baam will come back with Kaiser´s name. Princess Mascheny Jahad contacts her afterward. Maschenny proposes a bet with Green April and Yellow May on the line despite it being risky for their status as princesses. Maschenny tells Yuri that she will contact Yuri later with the details of bet and tells her if she refuses Mascheeny will make sure Yuri can no longer be on the Hell Train. Karaka shows up afterwards and attacks Yuri. Yuri and Karaka fight and Karaka destroys the path to the train so that Baam is unable to get on the train. However, Evan fixes the path with his item. When Baam and his team attempt to sneak across the path while Karaka is disracted because he is fighting against Yuri, she notices and uses Kranos to draw away Karaka's attention. However, Karaka is istead suspious as to why she is using the weapon and endure Kranos' attack by sacrificing his Amor Inventory Steel Tree and his arm. He takes Endorsi, Rak, Ehwa and the swordsman hostage and Yuri is unable to do anything against him. She watches while Baam faces off against Karaka. When Baam distract and Endorsi uses the chance to use Bong-bong she uses the Shinsu attack Murderous Energy Rose Shower to destroy Karaka.
- ↑ SIU Q&A translated by LaFa on bato.to
- ↑ SIU FanCafe Question And Answer (By Bunnyasbanana)
- ↑ Ch.02: 1F - Headon's Floor (2)
- ↑ User blog:GoDai/GoDai's Translations: People and Groups in the Tower (1)#Ha Yuri Jahad - Black Snakehead
- ↑ GoDais's Translations: People and Groups in the Tower (1); Rankings
- ↑ SIU's gossip of the 2012.11.26
Translation by lovesiu on bato.to
- ↑ Character blog translation
- ↑ Siu tweet
- ↑ Lafa translation of Siu tweet on bato.to
- ↑ Vol.2 Ch.113: 30F - Hell Train: Revolution Road (1)