Krans R. Tsarskiy

Klaus R. Shiarutsky (クランス＝R＝ツァールスキー) is a character introduced in Toaru Majutsu no Index. He is the current Patriarch of the Russian Orthodox Church. Although a child in looks and often times in disposition, he has the wits with him to be able to wield such a position, making him one of the most politically powerful persons in the world of Toaru Majutsu no Index.

Appearance
He is a boy of about 15 he is so slender that he almost has an effeminate appearance that rivals that of Vasilisa. He appears out of place in the majestic outfit of the patriarch which makes him look more like a small child who had put on his father’s suit rather than the leader of one of the three great Christian Churches.

Personality
Despite being a child, Klaus has the diplomatic, political, and charismatic skills to be a Patriarch of the Russian Orthodox Church. However, as he is a child, he still has childish qualities, which most often times rises up to the surface when it comes with the antics of his subordinates Sasha and Vasilisa. In fact, Vasilisa calls him "pure" and does the dirty work for him to preserve it.

World War III
During the course of the war he was imprisoned in his own palace in Moscow after being used to start the war with Academy City by Nikolai Tolstoy, who took the patriarch's signature by electronically signing a random dummy document on a tablet and then attached the handwriting data to a more dangerous document there by starting the war. After the war Nikolai to Have the guards "protecting" him assassinate the patriarch later and thus allowing Nikolai to assume the mantle him self.

Afterwards Vasilisa defeated the final guards within the patriarch's palace, and finally reached the child leader of the church who expresses joy of being rescued by someone still loyal to him. She briefs him on the current situation of Star of Bethlehem and that a single spell was connecting them, he then comments that they could use the Phenomenon Control, Suppression and Reproduction Institute to find and analyze that spell. To fully understand the spell Vasilisa contacts Matthai Reese to coordinate their plans ignoring the fact he is no longer the pope and all the while going on about the Patriarch's cuteness.

He later singed a proclamation to finally end the war:

"We can't let this meaningless war continue."

"Our side has clearly examined the conditions proposed by Academy City, and we will continue to discuss this. We'll negotiate about the details, but we can assure that Russia will not end up disadvantaged."

"In the past, we ignored the advice of the public, followed the suggestions of a few people and were unable to undo our choice. As for how tragic the situation was, I suppose everyone knows it better than I do. Regarding this historical error, we can't make any excuses."

"At least what I can do is to end all these abnormal situations as soon as possible, and let the world regain the peace that it should have had."

"Before all of these end, we shall be punished."

"So before that, please give me some time."

"A minority may be unhappy with this result, and may feel that putting down our arms isn't what we should do. However, I want everyone to calm down and think: what were we fighting for? If it's to fight for our family, our friends, our lovers, all the people that are important to us, this is the time, the moment to get all of 'these'. Continuing to fight on will only cause you to lose 'these'."

"The thing that made us recognize this were the actions of everyone on the battlefield."

"Facing the supernatural disaster near the end of the war, we chose a 'correct' move that's way above us, helping everyone, enemies and allies, without any difference. I believe that we can accept this ending."

"From now on, I declare that all fighting will cease. I hope for everyone to agree with this decision, and will be recorded for a future peaceful world to see."

"30th October, Archbishop of the Russian Orthodox Church"

"Klaus R. Shiarutsky"

Lance of Gungnir Arc
The Russian Orthodox Church representatives, Russian Orthodox Church Patriarch Klaus R. Shiarutsky, Vasilisa, and Sasha Kreutzev, arrive before the United Nations Building in New York for a conference called upon by Roberto Katze. Upon their arrival, Sasha is arguing about Vasilisa having "faith" in something other than "Japanimation" and American culture, despite being a member of the Russian Orthodox Church. Sasha then says that Vasilisa should be afraid of falling victim to an inquisition for saying such things in front of the Patriarch. Klaus hears this and says that he woulnd't do it. Roberto then asks where there others are while reading a lewd magazine in front of the others. Roseline says that the French are already inside the United Nations building, the Roman Catholic representatives should arrive shortly along with the Italian Foreign Minister. Thus the meeting of the Anti-GREMLIN Alliance draw near.

After Roberto and Roseline has been briefed on the fantastical topics of the current situation of GREMLIN, the lance of Gungnir, and Sargasso, Roseline speaks to summarize and clarify what they just discussed. Elizard says that she is correct and that the information comes from a spy in GREMLIN. She then says that what matter most is the creation of the lance at Sargasso as it is very dangerous. Roberto doesn't understand and compares it to a nuclear weapon. Klaus explains to him that it is because that what GREMLIN is doing is so large scale that it feels difficult for it to be real. Klaus reminds the people there the fae of the world if it falls in the hands of Othinus. He says that they don't actually know what GREMLIN's ultimate objective is, but when an age comes that is dominated by a single individual's ideal, a single straying ideal will be enough to have one's severed head displayed in the public square. After the other state heads take turns explaining the danger of the lance of Gungnir, Elizard says that it must be stop before it is finished. Roberto then asks how they will find it, noting the extremely difficulty of such a task in such a short timeframe. Elizard says that it is not impossible, surprising Roseline. Elizard not only gives an example but confides to them that England had a secret secret transportation network that allowed them to fill the entire world with their magicians. Elizard comments on the Roman Catholic Church and its countless followers, assuming that the Church may have a large scale magic to utilize each member of the Church who is wearing a symbol of their Church. Pope Pietro Yogdis says that he can think of a few but has shut them all down since the dissolution of God's Right and shall never see the light of day so long as he is around. And thus it is revealed that already know the location of Sargasso, apparently waiting for a proper deliberation from all the members of the conference before making a decision. Elizard suggests the use of standard forces comprising of America, Russia, England, and France, while the magical forces however, will be led by England, Rome, Russia, and France, though requiring other countries to double duty. Hearing this, Russia and France readily agreed.

Elizard then asks President Roberto Katze on how much firepower they could use. Roberto answers that since the House of Representatives is still itching for revenge over the invasion of Hawaii, he can get immediate approval from them for an attack on Sargasso. Roberto states that he can officially use the military stationed at four overseas bases in allied nations and if Sargasso is in international waters or the territorial waters of America, the European Union, or any other allied nation, he can have ballistic missiles fired in the name of having a test launch. And though he cannot use any nuclear, biological, or chemical weapons, he can at least have them fill the warhead with bunker clusters. Concerns over straining of the relationships between the countries later arise after Roberto's politically dangerous suggestion, to which he concludes by saying that he'd rather have countries gaining grudges with each other for what they will do than have the world destroyed today. Klaus R. Shiarutsky then asks where the Sargasso might be, to which Elizard states may be in the North Sea or the sea near Iceland. And thus begins the Anti-GREMLIN Alliance attack on the North Sea Sargasso. After receiving word of the disastrous mission, the members do not have time to grief over their failure as immediately after they are forced to counter GREMLIN who has begin their move, an invasion of Tokyo.

The alliance have their work cut out for them as GREMLIN puts pressue on their enemies, distributing what people desired to gain in order to prevent their enemies to unite and defeat just like what happened against Fiamma of the Right during World War III. With this, the alliance could not launch a counteroffensive against GREMLIN quickly enough. Roberto chastises a Japanese representative over the phone, asking why they have yet to make a move against GREMLIN, demanding consent that the United States should intervene. After the representative doesn't give a satisfactory response, Roberto ends the call. Elizard says that he should've asked what Academy City intends to do, though Roberto doubts that they would've known anyway. Roseline says that the Japanese government is divided on the issue, and Academy City has made no announcement. She is amazed at GREMLIN for intentionally created this current balance of power. With the clock ticking and with the Japanese government neutered into focusing in moving their government elsewhere before taking action, Roberto deliberates on his choices. Pietro then says that Academy City will make their move soon, though he has doubts if Academy City will bother distinguishing between friend or foe. The Maiden of Versailles then says that she doubts that Academy City even completely trust them, conjecturing that they another magical group will try to attack them within the confusion caused by GREMLIN, something that is only favorable to GREMLIN itself. Klaus tries to remind them that doubts and constraints are all part of GREMLIN's attempt to buy time, and that they need to have as many people they can at least trust. However, no one agrees with his assessment as there was no time. Roberto then asks Elizard if the Anglican Church have a hotline with Academy City, as they have joined forces during World War III. Elizard points out that it was the Anglican Church's doing and the British Royal Family was barely involved. Elizard then states that the Church as well wasn't able to contact Aleister since the end of the War. Out of allies, out of options, and out of time, Roberto contemplates what they should do. His stupor is later broken by Roseline, and there Roberto gave a small smile. He says that what they should do hasn't changed, and tells them that they should make a vote. One of the people there asks if they are using democratic decision to distribute responsibility, to which Roberto says that only those who go along with their plan will become responsible. Thus the alliance finally makes their move against GREMLIN.

Character Art Designs
Despite appearing at the very end of Toaru Majutsu no Index, Klaus doesn't get a design up until Shinyaku Toaru Majutsu no Index. According to Haimura, he didn't base the Patriarch on anyone or anything in particular, unlike Pietro Yogdis. Instead, he just focused on him having similarities with his fellow Russian Orthodox members, Sasha and Vasilisa.