Story and Characters

Story:

The story follows the conflict between Chaos and Cosmos and their allies,Chaos and Cosmos have been at war with each other for an eternity, but thus far neither side has emerged victorious. As the game begins, it seems Chaos has finally gained the upper hand.Three Keyblade Warriors,Yuna,Shiro and Riku finds Cosmos mortally wounded from a battle with Chaos. With the forces of light in peril, Cosmos appears before the other nine heroes and entrusts them with the task of recovering the Crystals, which can save their worlds.Though they do not fully understand the quest Cosmos sets before them, the heroes set out to retrieve the Crystals in the hopes they can end the war. Each of the ten heroes has a storyline following their journey to recover their respective Crystal. Each storyline also parallels to a certain extent the events, or at least the spirit, of the storyline in the hero's original game.The heroes return to Cosmos with their Crystals, but Chaos appears and incinerates the goddess,kills the three heirs,the vessel of Demon Fox emerges from Satoshi's body as he cries,and departs back to his realm. With Cosmos gone and the three clans were killed and their power is stolen by Ash Crimson,Chaos's revival is unstopable.With Kazuma upset over his father's death and their impending doom, Satoshi recognizes a familiar wind in the air that makes her come to believe that they're may not be entirely dead yet. Hyuga, furthering Satoshi's observations, explains that they can use the Cosmos Crystals to revive them.With the last of her strength inside them, Kyo,Iori and Chizuru able to come alive.Satoshi,Shadow and Hyuga along with the freedom fighters change into their Final Form,determined to avenge Cosmos and see her will fulfilled, the heroes journey to the Chaos Shrine, each confronting their respective villain once again. At this time it is revealed that the villains allowed the heroes to collect the Crystals, which contained Cosmos' light, and their shining caused Cosmos to weaken to the point she couldn't be revived, a "perfect death". Now that Cosmos gone for good, the cycle of war is over, with Chaos as the ultimate victor. Resolving to destroy Chaos and claim vengeance for Cosmos, the heroes each defeat their villain once again in battle.At the Chaos Shrine, the Freedom Fighters combine to open the path to Chaos' realm, and the they confront the god of discord on his throne. After an epic battle, Chaos is defeated and is consumed in flames as the heroes vanish. They appear in the fields outside Cornelia, and after some reminiscing, each return to their own worlds with their Crystal safe,While the Three girls went back to Silver Millenium.

Cosmos Side:

Ten Sacred Treasures:
Kyo Kusanagi(wields Kusanagi-no-Tsurugi (草薙の剣, Kusanagi-no-Tsurugi)deals with Itachi and guide Satoshi)
Iori Yagami(wields Yasakani no Magatama (八尺瓊曲玉, Yasakani no Magatama),father of Kazuma and Ayane and uncle of Taichi,deals with his son and daughters' rivaly)
Chizuru Kagura(wields Yata no Kagami,along with Tazuki)
Jun Kagami(Unknown,guide Ayane)
Moe Habana(wields "Yatsuka Sword" (八握 剣, Yatsuka no Tsurugi )partnered Kyo guide Satoshi)
Miu Kurosaki(Unknown,partnered Ayane along with Jun Kagami,and protect Sinobu)
Reiji Ohgami(wields the "Hetsu Mirror" (辺津 鏡, Hetsu Kagami),Chizuru's friend guide Satoshi and his nephew Tazuki)
Sinobu Amou(wields Makaru kaeshi no tama (死返玉),deals with his amnesia.He sees Ayane as he reminds her of Miu)

Legendary Warriors of Light:
Yuna(Deals with Mukai)
Riku(Deals with Magaki)
Shiro(Deals with Red Arremer,formely)

Freedom Fighters:
Satoshi Amaterasu(deals with his brother,Itachi,defend him from Ryuji)
Keiko Iwazaki(Satoshi and Taichi's friend,deals with Dr.Homculeus)
Taichi Yagami(Protecting Ayane and Kazuma from Neo Saiba,he sees Ayane as his sister,Hikari)
Ayane Tsukiyomi(deals with her brother,Kazuma)
Ayame Tsukiyama(deals with Chris)
Ayako Houshi(deals with Akuma)
Tazuki Kagura/Susanoo(deals with Goenitz for avenging the death of his mother,Maki)
Shadow Amaterasu(ultimate life form,deals with Shion and Yashiro,refuses to listen to him,sees Ayane of his deceased friend,Maria)
Sara Ozu(ultimate life form,along with Tsubaki,deals with Shinobu and Chris by protecting Shinobu and Tsubaki)
Tsubaki Ozu(deals with Shinobu and defend her from Chris)
Raphael Samuel/Ryo Kazehana(deals with Red Arremer)
Rowena Raphael Samuel(deals with Shermie)
Alexandra Samuel/Kimiko Kazehana(deals with Ash Crimson)
Fuuji(Deals with Mature)
Hikaru(Deals with Vice)
Hyuga(Hails for Future,appeared during shade impulse)
Faith(Hails for Future,appeared during shade impulse)


Chaos Side:

Hakkeshu:
Leopold Goenitz(Wind: can control the currents of the wind,opposing Tazuki uses Fire power from his Energy Sword.He witnessed the treachery of Kazuma,Itachi and Shinobu and need to be exterminate but it was prevented by Kyo,Satoshi,Iori,Ayane and Tsubaki)
Yashiro Nanakase(Earth: has power over the earth,opposing Shadow uses Ice power)
Shermie(Lightning: can use electric currents,opposing Rowena uses Water power)
Chris(Flame: can control blue tinted flames,opposing Sara and Tsubaki uses ice power,learned of treachery of Shinobu)
Mature(Beast: heighten raw instinct,opposing Fuuji)
Vice(Death: unmatched physical strength,opposing Hikaru)
Ryuji Yamazaki(Darkness: increased brutality with unknown results (it should be noted that Yamazaki has no interest in resurrecting Orochi. Normally, Orochi bloodline members of this mindset are eliminated, like Gaidel, but Yamazaki is too strong for any of the other members to take on. He is something of a "Wild Card"),tries to exterminate Itachi for treachery but Satoshi defend him)

Dark Knight:
Shinobu Shida(Tsubaki's friends,works behind the backs of the other villains, attempting to help the heroes in his own ways, though she remains their enemy as well.)
Kazuma Yagami(Ayane's brother and Iori's elder son.Like Shinobu,works behind the backs of the other villains, attempting to help the heroes in his own ways, though he remains their enemy as well.As Ayane's older brother,he considers himself stained with darkness beyond the point of salvation, and so walks the path of shadow he feels his sister should not.)
Itachi Amaterasu(Ayane's love interest,Satoshi's brother and Kyo's childhood friend.Like Shinobu and Kazuma,he works behind the backs of the other villains, attempting to help the heroes in his own ways, though he remains their enemy as well.As Satoshi's older brother,he gave an advise to Satoshi to smile and not to cry.Being Kyo's best friend,he considers himself stained with darkness beyond the point of salvation, and so walks the path of shadow he feels
his beloved,his brother and his friend should not. )
Ash Crimson(spied for treachery of Itachi,Kazuma and Shinobu and steals the three sacred treasure from Kyo,Iori and Chizuru)
Dr.Homculeus(opposed Keiko for ruining his plan)
Gustav(working with Choas,tries to manipulate Sinobu but Miu and Ayane interrupts)
Neo Saiba(evil Tamer in V-Tamer 01, and the brother of Rei Saiba.Opposing Taichi but he saves his life from Goenitz's attack.)

Those from the Past:
Mukai(opposing Yuna)
Magaki(opposing Riku)
Shion
Botan
Shroom and Rimelo
Unnamed Senior

Devil:
Red Arremer(opposing the angels:Raphael,Alexandra and Shiro)
Akuma/Shin Akuma(opposing Ayako)