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Sin is our punishment for letting things get out of hand.

Sin (シン, Shin?) is a major antagonist in Final Fantasy X. It is a gargantuan whale-like beast which threatens the world of Spira. It was named by the people of Spira who believed the beast came into being as punishment for their ancestors relying on machina and becoming a hedonistic society. By following the teachings of Yevon, the people of Spira believe one day they will atone for their crimes and Sin will vanish.

Sin is represented by the letter Z in the Yevon script alphabet. It appears in many places in Final Fantasy X, sometimes paired with the letter A, the symbol of Yu Yevon, symbolizing the beginning and the end of things.



Overdrive sin

Sin has a whale-like body that it moves with a pair of clawed arms, as well as hind legs resembling pectoral fins for movement in water. It has a long tail and its body is encased in scales which it can shed and turn into small monsters known as Sinscales. It carries part of a city presumed to be a part of Zanarkand on its body close to the back of the head. Sin's final form has feathery wing-like protrusions that are purple at the tips.


Sin is immune to most conventional form of weaponry and is highly resistant to attack, able to project a barrier to protect itself. Spirans believe that only the Final Aeon can kill Sin, and all attacks the party wages on Sin in Final Fantasy X only serve to wound it—it is not until the death of Yu Yevon's spirit that Sin actually dies. Sin's signature attack is a huge blast of energy from its mouth known as "Giga-Graviton", an attack so powerful that it can induce tectonic plate movements visible from outer space. Its other body parts are capable of using lesser Gravity-based attacks. Sin has an affinity to water and is often found in the ocean depths. It is seen blending into it, absorbing it and using it as a weapon. Whether Sin's abilities change depending on which Final Aeon forms its core is unknown.


Spoiler warning: Plot and/or ending details follow. (Skip section)

Final Fantasy XEdit

Sin in zanarkand ruins

Sin in Zanarkand ruins.

Sin was created during the Machina War between Bevelle and Zanarkand, Bevelle relying on machina to fight and Zanarkand using summoners. When Zanarkand was losing, Yu Yevon, a summoner of Zanarkand and its leader, devised a plan to both defeat Bevelle and preserve the city of Zanarkand forever. Yu Yevon called the surviving people of the city together and transformed them into fayth as conduits for a massive summoning that created a spectral version of Zanarkand from the dreams of the former Zanarkand inhabitants.

Yu Yevon set this dream Zanarkand out to sea, then called pyreflies to himself to craft the first Sin. Sin was given two objectives: protect the summoning of dream Zanarkand, and to ensure it was not discovered, and to destroy any city that grew too large or relied too heavily on technology. The strain of trying to control Sin was beyond Yu Yevon, and the process destroyed his mind, removing any conscious control he may have had on it. Sin thus became a monster that knew only its two instincts, and indiscriminately attacked cities and villages all over Spira, starting with the true Zanarkand itself.

To allow Spira a reprieve and hope for salvation, Yu Yevon's daughter, Yunalesca, presented a way to destroy Sin—the Final Aeon, a powerful aeon born from a bond of love. Sacrificing her husband Zaon for the ritual, he became the Final Aeon and destroyed Sin. Yu Yevon's spirit possessed Zaon's body, and over time Zaon transformed into a new Sin. During this time the new Sin was too weak to terrorize Spira, establishing a temporary time of Calm.

Apparently the only one able to create the Final Aeon, Yunalesca became an unsent and taught the people of Spira that if they atone for the sins of Bevelle and Zanarkand during the Machina War, one day Sin would be vanquished for good. In truth, Yunalesca and the upper echelons of the Church of Yevon know Sin would always return, but their teachings give Spira hope and keep its citizens from giving in to despair.

For a thousand years this cycle continued—summoners would go on a pilgrimage to hone their abilities as they traveled to the ruins of Zanarkand and met Yunalesca, who would transform one of their guardians into a new Final Aeon. The summoner would give his or her life to destroy Sin with the Final Summoning, and Yu Yevon's spirit would possess the Final Aeon and turn it into a new Sin.

X sin appears in macalania

Sin appears in Lake Macalania.

Braska, Jecht and Auron are the most recent band of summoner and guardians to defeat Sin. They were told the truth by Yunalesca before Braska obtained the Final Aeon. Though Braska held onto the hope that this time Sin would not return, Auron believed otherwise. Jecht became Braska's Final Aeon and tasked Auron with finding a way to the dream Zanarkand and taking care of his son, Tidus. The Final Summoning killed Braska and Jecht became the new Sin.

Ten years later, Jecht, still aware within Sin, invades the dream Zanarkand, and he and Auron take Tidus into the world of Spira. As Tidus travels with Braska's daughter Yuna as her guardian, Auron accompanies them and teaches Tidus about Jecht and Braska. Tidus is made aware of Jecht's spirit resting within Sin, and is told Jecht wants Tidus to kill him to free him from his fate of terrorizing the world.

When the party confronts Yunalesca she tells them the Final Aeon would not destroy Sin permanently, but Braska chose this path to give the people of Spira hope. Denouncing the tradition as false hope, Yuna refuses to sacrifice one of her guardians. Yuna and her guardians destroy Yunalesca, and with her the way to create a new Final Aeon.


Sin faces off against the airship.

Tidus suggests that instead of killing Sin they find a way to destroy Yu Yevon's spirit within it. The party wages a full scale attack on Sin with the airship, Fahrenheit, and enter its mouth. In the deepest part of Sin they find a recreation of the dream Zanarkand in ruins, where Jecht awaits them. The party destroys Jecht in his Final Aeon form and Yu Yevon emerges.

Yuna calls her aeons one by one and Yu Yevon possesses them, and the party destroys them as well. With no aeons left to control Yu Yevon becomes vulnerable and is killed and Yuna performs a sending to place his spirit at rest. With Yu Yevon's defeat, Sin is vanquished and the Eternal Calm begins.

Final Fantasy X -Will-Edit

The Farplane has become unstable to the point that beckoning outside of it manifests the dead in Spira. Sin returns, ending the Eternal Calm, and Yuna theorizes it was the result of someone beckoning it. She delivers a speech to a crowd of people announcing she will defeat it once more.


Inside SinEdit

Main article: Inside Sin

The inside of Sin, aptly known as Inside Sin, is the game's final dungeon. The party enters inside the beast after having penetrated its armor, and make their way to the center where they face Braska's Final Aeon, and eventually, Yu Yevon. The fiends within Sin are very powerful, but if the player defeats them they gain valuable AP.


Main article: Sinspawn

Sin can create smaller creatures, Sinspawn, from its outer layer. Coming in a variety of shapes and levels of power, the Sinspawn cause trouble for any person that crosses them until Sin arrives and reabsorbs them.

  • Sinscales: Generic Sinspawn.
  • Ammes: A sea anemone-like Sinspawn.
  • Echuilles: A jellyfish-like Sinspawn.
  • Geneaux: A Sinspawn found at the entrance of Kilika Temple, hiding inside a tough shell.
  • Gui: A fusion of various Sinspawn gathered by the Crusaders for Operation Mi'ihen.
  • Genais: The absolute strongest Sinspawn, with the same shape as Geneaux.


See also: Sin (Fin), Left Fin, Right Fin, Sin (Core), and Sin (Head)

Sin's various body parts are faced several times during the game.

Creation and DevelopmentEdit

Sin prototype

Early concept art depicting a Sin prototype.

Sin was created to be a presence Spirans could not avoid, however much they tried. Yoshinori Kitase created him to represent the kinds of calamitous disasters that exist in the real world, such as earthquakes and typhoons.[1] Spira has the teachings of Yevon, which give meaning to people's lives in the face of death, so what Kitase really tried to show in Final Fantasy X, was how people behave in the face of unavoidable fate.[2] Having ruins become a part of Sin's physical form helped to visually cement the idea it is an "unimaginably ancient monster on an unprecedented scale". Sin's broad physical shape is modelled after a whale to give the impression of the being's size, as well as its intelligence and otherworldliness.[2]

Plot of Final Fantasy X alludes to the famous Japanese story of Susanoo and the Yamato-no-Orochi. Susanoo (Tidus) is banished from his home in the Heavens (Dream Zanarkand) and trying to win back favor to return home. He comes to the mortal world (Spira) and comes across two earthly deities who are weeping because they have to sacrifice their daughters (summoners) to the evil Yamato-no-Orochi (Sin) to keep it from destroying their home. They wish to save their eighth daughter (Yuna) from being devoured, so Susanoo comes up with a plan that involves getting the dragon-snake drunk with wine ("Hymn of the Fayth") and killing it in its drunken state.

"Yamata-no-Orochi" literally means "8-branched giant snake" and is often translated as the Eight-Forked Serpent in English, is a legendary 8-headed and 8-tailed Japanese dragon. Early concept artwork for Final Fantasy X show serpentine or octopus-like Sin prototypes with multiple appendages.

When asked why Sin was brought back in Final Fantasy X -Will- Kitase commented that similar to how Sephiroth's role in Final Fantasy VII, Sin plays an important role in Final Fantasy X and the developers wanted to keep Sin involved with the story. "We can't say what happens to Sin after the radio drama, we wanted to leave something up to the player’s imagination."[1]

Other AppearancesEdit

Final Fantasy Airborne BrigadeEdit

Around January-February 2013, Sin was one of the opponents available in Final Fantasy Airborne Brigade.[3][4]

Impresario-ffvi-ios This article or section is a stub about Final Fantasy Airborne Brigade. You can help by expanding it.

Final Fantasy Trading Card GameEdit

Sin appears in the Final Fantasy Trading Card Game and is represented by Dark-elemental cards. He is depicted in a screenshot from a Final Fantasy X FMV and a Yoshitaka Amano artwork.



Sin's name in both Japanese and English is a reference to religious concept of "sinning", willfully committing an act against one's religion. The name is also tied to the Mesopotamian moon god "Sin", also worshiped in Sumeria as Nanna, which highlights the connection with Yuna, whose Celestial Weapon is powered up with the Moon Crests and Sigil. Sin's connection with the moon may also explain Sin's command of Gravity magic and affinity for the ocean.


  • Sin somewhat resembles the Leviathan, a sea monster from the Old Testament, and the word itself has become synonymous with any large sea monster, in Modern Hebrew simply meaning "whale". The Biblical Leviathan would live in the ocean depths meting out judgement.
  • Its appearance could also have been inspired by the Moby-Dick, book by Herman Melville. Moby-Dick represents many things: an unknowable and inscrutable god or madness incarnate. To different people it symbolizes true evil or "a dumb brute...that smote thee from blindest instinct!" or a power that controls and limits mankind. All of these themes can be seen in Sin.


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