城户真司虽然是一名刚进报社的菜鸟记者却满怀抱负，他努力并期待自己能够早日独当一面。由于近日经常发生不明的失踪事件，警局和报社都为此忙碌不已，还在试用期的他却因为好奇心的驱使，使得他卷入一场空前的大浩劫。

莫名坠入浩劫的真司，在遇见优衣以及莲之后，得知了所谓的镜世界。镜怪物和接二连三失踪的人有密切的关系，真司在优衣的引导下，终于和无双龙龙深红者签下了契约，他将开始和镜怪物展开永无止境的战斗。

和龙深红者签了约的真司一心一意想要变成打击镜怪物的假面骑士，但是，莲却说最后只能有一个假面骑士生存下去，被莲排斥的真司不明白莲所说的这番话，他更不明白莲为什么要攻击他。真司遇上了士郎，士郎也暗示他，必须奋战让自己成为最后生存下来的假面骑士。

真司遇见的神秘男人很可能就是优衣的哥哥，在和优衣谈过之后，真司才知道原来假面骑士的牌组是优衣的哥哥士郎发明的。优衣告诉真司其实莲是个值得信赖的人，这让真司觉得很不服气，因为他亲眼看见莲在攻击智里。

令子查出一部份的失踪者持有共同的嗜好，就在她前往调查的时候居然被不名物体攻击。得到消息的真司赶到医院探视令子，令子要他接手往下调查，没想到却让他发现了另一名假面骑士。

莲怀疑第三个假面骑士是古董店的店长加贺变的，没想到加贺早就已经死了，真正的假面骑士Scissors是刑警须藤。在须藤略施小计之下，真司无意却出卖了莲和优衣，这也让真司见识到为了生存下去，假面骑士必须不择手段的悲哀。

真司在采访的路上被一个冒失鬼给撞破了挡风罩，他一路追着这个人索赔，不料，他发现除了他之外还有其它的人也正在追赶这个男人。最后更让他感到不可思议的是，这个男人居然是第四个假面骑士。

在侦查案子的过程中，真司巧遇上次发现的第四个假面骑士北冈秀一。北冈秀一告诉真司，他是一个喜欢人类欲望的人，他希望自己能够长生不死，满足自己所有的欲望，真司不知北冈话中真正的含意，他觉得北冈秀一是一个有趣的人。

大久保接到电话，内容告知他说岛田被绑架，如果要保住岛田的小命必需拿三千万来交换。大久保命令真司带着钱前去赎人，不料真司却被警方误以为是歹徒。沙奈子请来北冈为真司辨护，未料在莲和北冈交涉之时，敏感的莲发现北冈是第四个假面骑士。

北冈秀一居然拿出钱来替由佳莉的母亲付清了手术费，这让陷入困境的由佳莉感动不已。岛田想起了重要的回忆，真司终于被释放，重新享受自由的空气。不过，同为骑士是不可能共存的，到底最后一位存活下去的骑士会是谁呢？

莲在意外中失去的一部份记忆，他虽然连真司都忘了，真司仍旧陪着他到处去找寻记忆。另一方面，为了要阻止骑士之间的恶斗，优衣回到了哥哥的母校，打算从哥哥过去的事情当中找出哥哥失踪的真正原因。

优衣为了要阻止骑士间的战斗，她来到了哥哥失踪前念的大学，想要了解有关哥哥的事情。她找到了一位叫中村的人，中村和她一起探讨事件发生的经过。另一方面，莲终于恢复了失去的记忆，他将揭开属于自己不为人知的过去。

优衣继续在访查哥哥失踪前的相关事情，她从中村的口中得知，哥哥曾经在实验室进行某项实验，而那个实验是为了她做的。这样的消息让优衣显得更加焦急，种种的谜样线索让她不知从何着手，她是否能够找到阻止骑士互斗的方法呢？

北冈律师知道真司只为保护人类而战，所以故意和吾郎联合起来捉弄他，真司以为绿骑士真正的身份是吾郎，吾郎于是装死，让真司以为自己亲手杀了假面骑士。单纯的真司伤心不已，他向莲哭诉从此以后不再变身为骑士，莲则揭开了北冈的骗术。

芝浦淳发明了一种游戏，这种游戏能分析出人类的心理层面，越喜欢玩这种游戏的家伙，就会变得越想追求刺激，但是却得不到满足，于是会开始寻求真正的战斗来自我满足。这宛如假面骑士间的互相残杀行为被搬到现实生活中进行一样，让真司觉得不可思议。

真司没有想到第六个假面骑士，居然会是像芝浦淳那样恶劣的男人，他还抢走了真司和龙深红者的契约卡。手冢和真司一样一心一意要阻止假面骑士间的战斗，有他和真司连手，骑士间的恶斗是否真的能够停止呢？

优衣为了要调查哥哥的事情，对仲村展开死缠烂打的功夫，仲村在拗不过优衣的情况之下，把手边有关江岛研究室的资料全部都交给优衣，同时也告诫优衣这件事情从此以后与他无关。优衣是否能够透过这些数据，顺利的揭发当年所发生的神秘事件呢？

真司不相信手冢算的命，他认为他一定能够想出办法来阻止骑士之间的战斗。秀一拒绝为浅仓辩护之后，浅仓在士郎的指示下逃出监狱，他已经成为骑士之一，加入假面骑士的战斗中。

逃狱成功的浅仓挟持了小女孩，他并威胁警方要带北冈律师来交换人质，真司潜入打算伺机解救人质。一场风云际会的假面骑士战斗就要展开了，在神崎士郎的刻意安排之下，谁会是最后一位登上胜利宝座的英雄呢？

满脑子只有战斗想法的莲居然帮助浅仓逃走了。不可置信的真司随后追赶，他不明白莲为什么要成为一个背叛者。手冢告诉真司如果我是莲的话，我也会无条件的投靠浅仓和他成为同路人，现在莲只能把脱下来的面具再勉强的戴回去。

莲告诉真司，其实他成为假面骑士的目的，就是要救惠里。为了救惠里，他必需成为最后一个胜利的骑士。如果他失败，惠里就会在无法恢复意识的情况下死去，而且时间只剩下半年。

优衣在旧照片中看到一栋房子，她觉得似曾相识，所以跑去问阿姨是否见过，阿姨却不愿意正面的回答她。手冢发挥了超能力，他得知十三年前的爆炸事故夺走了优衣双亲的性命，他想紧抓住这个线索，借以查出和神崎士郎相关的事物。

手冢在临死之前仍旧坚信齐藤雄一为了正义，及不愿成为战斗骑士而选择死去。改变真司命运，替代真司慷慨就义的他，在此刻也终于明白，当初的雄一也是为了要改变他的命运，和他做了相同的抉择。

令子从北冈的口中得知浅仓威小的时候，家中曾经因为一场大火而发生变故。浅仓威一直以为火灾之后他不仅失去了双亲，同时也失去了唯一的弟弟。事实上这个弟弟还活着，活着的弟弟是否能够解开浅仓威不为人知的秘密呢？

浅仓威告诉令子他非常的想念自己的弟弟浅仓晓，如果有机会再见到弟弟，说不定会因此而改变．令子误信浅仓威的谎言，好不容易说服浅仓晓和浅仓威见面，这才发现原来浅仓威所说的话全是一派胡言…

真司一直想要改变浅仓威，不过并没有成功．他不死心，将目标放在北冈秀一身上，他相信自己一定能够阻止骑士间的战斗。优衣和莲到医院去探望惠里，没想到惠里的病情却每况愈下…

莲在变身的时候，不小心被拓也瞧见了。拓也一直缠着莲，他要莲告诉他如何才能变成骑士。莲拿他没办法，只好带他回去交给真司。为了让拓也知道战斗并非是好事，莲刻意变身为骑士，想要让拓也看看真正的战斗何其残忍，不料却遇见了第十三位骑士。

13号骑士出现之后，真司和所有人的时间全部都回到了过去。真司知道这是13号骑士搞的鬼，所以想尽办法要改变一切。但是，不管他多么努力，只能在己经发生过的事情里面打转，重复再重复。

大久保受朋友之托，带来了相亲照片，岛田和令子心血来潮说想要试试看，不料这一去之后，音讯全无。真司一行人为了查明真象，只好以优衣为诱饵，希望能安全的救出令子和岛田。

北冈秀一从前的秘书浅野惠美以为自己得了不治之症，所以对大家谎称她和秀一有婚约。真司听到消息后，非常的不能谅解北冈，他要北冈负起责任和惠美结婚，可是医生却对吾郎说，惠美只是有点低血压。

一艘专门搭载游客的渡船上不知发生了什么事件，警方只找到船上唯一幸存的小女孩——实加。真司和莲怀疑是浅仓的杰作，为了查明真象上船一探究竟，但是，要求医生让自己重回现场的实加却告诉真司和莲，浅仓是她的救命恩人。

经过真司和莲的查访，在渡船上救小女孩一命的人困然是浅仓，这个结果让大家都很惊讶。没想到一向嗜血的浅仓居然会发动慈悲心肠，救助一个无助的小女孩，这样的结局让真司感动万分…

真司从镜中世界回到现实世界时，因一时大意被浅野惠美给看到了，惠美扬言要查清楚真司为何会进出镜中世界，让真司非常担心骑士的身份曝光。令子紧咬着士郎不放，一心想查出士郎的真实身份是否和那些莫明蒸发的人们有关。

医生告诉莲说惠里只能再活几天了，莲的心中感到很痛苦，于是找真司进行战斗。莲和真司是否会两败俱伤呢？另一方面，令子紧咬着神崎士郎的新闻不放，她回到清明院大学准备展开详细的调查。

浅仓威在秀一的计划之下，终于被警方给逮捕了。不过，狡猾的浅仓威被捕时，居然没有做出任何的抵抗。

警方虽然派出大队人马护送浅仓威引渡，却还是让浅仓威找到脱逃的机会．原本生命垂危的惠里，竟然奇迹似地醒了过来，优衣兴奋不已，马上通知真司，真司得到消息之后，马不停蹄地寻找莲，他要告诉莲，既然镜世界有被关闭的希望，骑士之间就不需要再战斗了。

原本徘徊死亡边缘的惠里，奇迹似地醒过来了，真司和优衣以为莲会因此停止战斗，但是莲并没有因此打消战斗的念头。香川教授告诉真司，想要关闭镜世界必需拥有舍一取十的过人勇气，这句话是否意味着什么样的结局呢？

回到花鸡的真司看见东条悟已成为店中的帮手，心中又惊又喜，他希望东条悟能够把如何才能关闭镜世界的方法告诉他。但是，没想到东条悟告诉他的答案是，只要杀死神崎优衣就能够结束骑士的战斗和消灭镜中的世界。

浅仓在森本律师的无知之下，果然又出来作怪了。士郎用香川的家人来威胁香川，幸好真司出手相救，所以大家都平安无事。大久保把岛田拍到的奇怪照片拿去请专家分析，得到了令人振奋的结果。

又出现了一个新的骑士——Imperer。Imperer是一位重视物质、讲究现实的家伙，他知道莲与真司以及香川与悟为了强夺优衣而大战，所以分别向两路人马提出条件，希望能够加入以效其力，不料，他提出的条件让双方人马都对他心存戒心，终究让他两面都无法讨好。

香川老师不时对东条悟耳提面命，他希望东条能够成为真正的英雄。东条在老师的洗脑下，变得不希望关闭镜世界，他认为战斗到最后的骑士才能称得上是英雄，而且，为了成为英雄，他居然想牺牲一心提拔他的老师。这样的结果让香川非常惊讶，真司也被这样的情况搞得一头雾水。

优衣居然被怪兽给抓进了镜中世界，而且看似完全被怪兽所操控。真司和莲急得像热锅上的蚂蚁，他和莲进入镜世界寻找优衣，可是却遍寻不着。佐野满到处投靠骑士，想要糊口饭吃，却处处碰壁…

到处碰壁的佐野满居然是大公司的继承人，他终于如愿以偿的得到了荣华富贵。可是，他却得意忘形，忘了自己的身份是骑士。士郎出面惊告他，成为骑士之后必需持续的战斗，卡片套匣就是禁锢，除非成为最后一位胜利的骑士，否则根本没有机会摆脱骑士的身份…

浅仓告诉悟，其实杀死佐野满的人是他，这样的表白让自以为已经变强悍的悟感到备受打击，他突然对自己失去信心。莲和真司终于了解神崎士郎的所有作为都是为了不让优衣消失，不过，他们却不知优衣要消失的原因。

为了救优衣，真司和莲决定要奋战，成为最后一个胜利的骑士。一心想成为英雄的东条悟，在明白自己的份量之后，成为自己的能力所及的英雄，他牺牲了自己宝贵的生命救了一对父子的生命。

真司突然觉悟到，能够救优衣的时间不多了，因此，向来一味反对骑士间战斗的他，开始主动出击，寻找骑士同伴进行战斗，希望争取时间解救优衣。不料，大家无法接受突然改变作风的他，连Knight都不太愿意和他展开战斗。

神崎士郎所做的一切都是为了阻止妹妹优衣消失，但是优衣不愿意牺牲别人的性命来取得自己的新生命，所以她出面阻止骑士间的战斗。神崎士郎为了不让优衣影响骑士的战斗，将她软禁在镜世界。

真司在找到下定决心的理由后，不幸阵亡。真司的死让莲相当痛苦，虽然骑士间除了战斗还是必须战斗，真司和莲却产生了真正的友情。士郎为了救优衣，在仅剩的时间内，准备安排Knight和Odin展开最后一场战斗。

当镜世界被优衣和士郎关闭之后，现实的世界便回归到原点，所有死去的人也一一回到了原来的本位。世间一片和平，没有镜怪物也没有假面骑士，地球仍旧转动，太阳仍旧往东边爬起来，昨日的种种彷佛是一场梦…

A luckless boy named Ryotaro Nougami comes across a strange train pass and becomes possessed by a powerful demon as he finds himself unexpectedly becoming the a hero known as Den-O fighting strange creatures from another time!

Ryotaro discovers more about his duty as Den-O to protect the timestream as he tries to figure a way to appease Tetsuo before the Bat Imagin can ruin the past.

Momotaros decides to use Ryotaro's body without his permission, leading to him to become the bodyguard of a minor criminal in need of cash.

Angry with Momotaros for using his body for the sake of money, Ryotaro decides to handle helping Yamagoshi without summoning the Imagin for help!

A suave but lying Imagin suddenly takes over Ryotaro's body, angering Momotaros as he fights to assert his dominance within the Singularity Point!

With Urataros causing nothing but trouble, Ryotaro is forced to make a decision regarding whether to keep the lying Imagin around while he and Hana try to figure out the Imagin's contract holder.

Momotaros tries to prevent Urataros from causing too much chaos with Ryotaro, while Ryotaro sparks the jealousy of a boyfriend of a girl he is forced with, leading to a drastic confrontation.

Both Ryotaro and his sister Airi work to try and improve relations between the broken couple as Den-O tries to figure out the mystery behind the Imagin's attacks.

Ryotaro and Hana pursue two Imagin attacking martial artists, one to eliminate rivals while another only to prove its own strength against other opponents.

Ryotaro tries to discover the truth regarding the karate champion possessed by the Rhino Imagin, while Hana tries to make sense of the Bear Imagin and what he really desires.

Ryotaro becomes the bodyguard of an adoring idol who suddenly finds herself under attack, both in a plot of jealousy and an Imagin.

After discovering the Imagin contract holder is Kasumi's father, Ryotaro tries to discover why as Kintaros keeps trying to manage resolving the crisis in his own stubborn ways!

Ryotaro suddenly becomes possessed by an evil spirit who kicks out all the other Imagin and deals with threats in its own destructive way!

Ryutaros continues to cause problems to the other Imagin in holding on to Ryotaro's body, forcing them to take action in order to get their partner back.

Ryotaro is taken hostage by a wannabe criminal in a bathhouse as an aquatic Imagin starts running amuck.

As he remains hostage by the bathhouse owner, Ryotaro tries to figure out the mystery of his relations with his former boss while trying to prevent Ryutaros from dealing with him his own way.

Ryotaro and Hana decide to clamp down on the Imagin possessing him out of fear of Den-O's health; as Ryotaro encounters a former classmate nostalgic for the past.

After encountering the mysterious Past Man, Ryotaro decides to stay in the past in hopes of determining who he really is, even at the risk to himself.

Yuto Sakurai's past self appears before Ryotaro to tell him to not try to be so reckless in his pursuits again as a violent Imagin suddenly makes its move in the present.

Yuto confronts Ryotaro about his duty as Den-O while both try to stop the Jelly Imagin from causing chaos.

Ryutaros grows jealous of Yuto due to his connection to Airi, making him take drastic action in order to take him down!

The fight between Den-O and Zeronos continues as they fire shot for shot, until Hana, once, again, tries to intervene.

A bizarre Imagin boards the DenLiner, pushing around the other Imagin in order to be pampered and to protect his newborn host!

After Ryotaro becomes arrested while trying to return Sieg's host, Hana tries to teach the troublesome Imagin what it means to be a real, responsible prince.

Ryotaro continues to try and gain the trust of Yuto, even as he's being dragged to an important climax!

Ryotaro continues to attempt to assist the Zeronos of the present in protecting a contract holder from the Spider Imagin even as Yuto's future self keeps dragging him to another time!

Two Imagin controlled by a hidden mastermind possess a pair of criminals in order to attempt to both attack the present and lure Ryotaro into a trap!

After defeating Gaoh, Ryotaro's ability to fight as Den-O becomes complicated when three of the Imagin start to fade away due to the measures needed in the prior showdown!

In order to gain the ability to use Climax Form better, Ryotaro uses a haunted house challenge to inspire the Imagin to work together in harmony.

Deneb approaches Ryotaro in hopes of having him become his Imagin in order to prevent Yuto from using his final Zeronos Card.

A former suitor of Airi returns in hopes of winning her heart in the absence of the missing Yuto, leading to Yuto's younger self and even Ryutaros to respond.

As Den-O has trouble dealing with the Anthopper Imagin, Yuto contemplates the need for the final Zeronos card and the permanent damage that will occur if finally used.

The DenLiner crew discover an anomaly associated with the missing future as Hana suddenly transforms into a young girl.

Ryotaro works to try and figure out the mystery of the wandering piano player and what his true wish is before his Imagin can complete its desire.

Fearful of Yuto's fate knowing of the truth of what happens to those who aren't remembered, Ryotaro decides to try to become strong enough to protect him and time.

As Ryotaro's dread on Yuto's fate is furthered with him becoming Zeronos again, he and the Imagin try to figure a way for him to transform in the past due to the mysterious future line throwing off their synchronization.

Ryutaros finds himself conflicted when his boss arrives to check on his progress, while he continues to feel the anger of trying to win Airi from Yuto.

With the DenLiner running amuck throughout time, the DenLiner crew must figure a way to save the trains while dealing with Ryutaros' feelings after being manipulated by Kai.

While Ryotaro tries to figure out the true purpose of Yuto's interactions with both present and past actions, Kai decides to experiment in eliminating Zeronos in the past.

With the people of the world altered from Yuto's removal from time, Ryotaro tries to figure out how to bring him back while dealing with Kai's manipulations.

Shocked by his actions in the world without Yuto, Deneb tries his hardest to create connections so that his partner will not disappear with the usage of his Zeronos cards.

Discovering that the female contract holder's wish was for Yuto himself, Deneb continues to try and make things memorable in hopes of helping his partner make true lasting memories.

With the realization that the defeat of Kai may mean the departure of the Imagin, Ryotaro begins to try and prove that he can fight on his own without any assistance.

With Ryotaro continuing to deny the help of the Imagin out of fear of losing them, Momotaros decides to take a stand while the others deal with the stowaway Imagin in the King Terminal.

Ryotaro tries to find a way to travel back to the day his sister lost her memory, in hopes that it would reveal the full truth regarding what happened to her and to her fiance Sakurai.

With the shocking revelation of what really happened the day Sakurai disappeared with Airi's memory, Ryotaro must piece together how it connects to his broken memory as the truth regarding the key to the Junction Point is revealed.

When Kai begins a multi-tier attack in order to eliminate Airi, both Ryotaro and Yuuto try to stop him, with a Imagin deciding to help in trying to make sure that the past and future is protected...

On their way back to stop Kai from killing Airi, Urataros takes over the DenLiner with several other Imagin, dumping Ryotaro at the moment where his missing memory is revealed!

Ryotaro returns to the present to confront Kai and bring an end to his mad reign of terror, even if it means an end to all Imagin, including Momotaros and his allies!

A mysterious arm reawakens the Greeed from their slumber and decides to use Eiji Hino, a cheerful wanderer, as his means of getting back what he desires as Kamen Rider OOO.

Ankh explains the Greeed and the purpose of the Medals to Eiji, even as the human desires to merely use his new power to fight for good instead of for selfish needs.

Ankh becomes troubled when Eiji prevents him from eliminating his possessed body's sister while another Greeed uses a man's gluttony to create more Medals.

Ankh threatens to leave OOO for Kazari and the Greeed while investigating the evolution of humanity while Eiji tries to find more about Hina.

Kougami asks for a share of Eiji and Ankh's Medals, while Mezool decides to use Hina's shopaholic classmate to create a new Yummy.

Hina confronts Yamano's shopping addiction when her father goes bankrupt while Ankh confronts Kougami about his share deal of the Cell Medals.

Eiji tries to research a husband bullied by his wife that is being mocked by Gamel while Ankh follows a lead for a missing Core Medal.

Eiji gets to the root of the Komoris' problem involving greed and loss of ambition while Ankh fights for survival after a failed confrontation with Uva.

A serial bomber tied to a nest of Yummies leads to Eiji to reveal his past to Hina and forces him to encounter a strange man he believes is Mezool's victim.

Eiji must figure the means of stopping the mad bomber and his Yummies to prevent any more lost lives, even with Maki observing the creation of his worker's monsters.

Eiji's traveler friend becomes manipulated by Uva into becoming famous as he steals others attributes; while Gotou doubts Eiji's effectiveness as OOO.

Eiji teaches a lesson to Tsukuba and Gotou about going forth to gain what is desired; while Ankh tries to figure a way to manage the flying Ageha Yummy using Gamel.

Ankh is at a breaking point with everything surrounding his human host; a highly sought after doctor has been repeatedly removed from the operating room, making her frustration a perfect target for the Greeed.

Both Hina's brother and the hospital director are in critical condition after Ankh's detachment and the Yummy attack. Eiji must find both Ankh and the affected surgeon before it's too late.

Ankh finds one of his core medals; Gotou is transporting a truck full of medals to Doctor Maki; Kazari appears to Ankh and Eiji, telling them that Hina is in Gotou's truck.

Eiji learns about how the Greeed were born; Gamel searches for Mezool; Kamen Rider Birth joins the fight.

The Greeed take an interest in a girl who wants to get better at kendo; Ankh takes an interest in Kamen Rider Birth; Hina gives both Eiji and Ankh gifts for saving her.

Eiji and Ankh try to find out the reason that the Yummy split in two, but Kamen Rider Birth is one step ahead of them.

Kougami tries to give Eiji one of Ankh's medals, but he refuses; a face from the detective's past shows up at Cous Coussier; thanks to Kazari, a criminal that the detective put away is on the streets and looking for revenge.

Ankh tricks Kazari by telling him that Eiji knows where his last medal is and then chases after Hina who has his own medal; Date and Gotou discuss the skills need to be Kamen Rider Birth; Kougami changes his mind and sends Ankh's medal to Eiji.

The Cous Coussier gang runs into a young boy getting attacked for telling off a man for littering, learning that it's something he picked up from his father; the Greeed creates a Yummy from the desire to help people.

Susumu lets his desire for justice get out of hand and it's up to Eiji to stop him before it's too late; Gotou and Takashi have a heart-to-heart conversation about their ideals.

Kazari is drawn to the vanity of woman whose sister takes all the credit for her work.

Eiji is head over heels for Yuumi and it's up to Date to save his old friend before she does something that she'll regret.

Ankh is acting more standoffish than usual; a boxer is forced into retirement just before a big match and is captured by a bird Yummy.

Eiji is still super beat up from the previous battle but he is the only one who believes that Ankh did not create the bird Yummy; Kazuki heads back to the ring as Date and Gotou rush to stop him from injuring himself more.

Kougami invites Eiji and Ankh over to celebrate the 1000th episode of Kamen Rider and decides to make a movie to celebrate; Kazari is drawn to a Shocker grunt who joins the movie.

Even though he's injured, Date still wants to finish directing the movie; Sendou starts sabotaging the movie with his new friends.

Kazari uses Dr. Maki's desire to make a Yummy; Gotou goes back to work; a strange monster shows up with Ankh's other arm.

Dr. Maki and Chiyoko have a heart-to-heart talk about his sister; Kazari takes Ankh's memoryless body under his wing; Kougami tells Gotou the story of the medals as Eiji and Date get Ankh to finally tell his story.

Dr. Maki and Kazari try to awaken a brand new Greeed; a man has been unknowingly using Greeed money to pay off an old debt; Eiji gets infected by purple core medals.

An x-ray reveals that there should be nothing wrong with Eiji; Date tells the others about the time he previously ran into Eiji; Eiji uses the purple medals.

Eiji is forced to use the purple medals again; an old friend from High School invites Eiji to an amusement park where Hina is then kidnapped; a Yummy abducts Date and Gotou.

Ankh tells Eiji about what his friend has been doing; a Yummy kidnaps Ankh; Eiji forces himself to use the purple medals.

Hina wins first place in a fashion contest and is offered a chance to study in France; Dr. Maki creates a Yummy that destroys people's dreams; Date collapses in battle and Kougami finds an interesting x-ray on his brain.

Hina's brother has woken up, leaving Ankh without a host; Eiji discovers Hina destroying all of her clothes after getting her dream broken; Uva revives Mezool and Gamel.

Gotou finds Date avoiding his checkup; a Yummy causes people all over the city to suffer from insomnia; Dr. Maki makes Date an offer.

Date joins forces with the Greeed; Gotou tries to raise the 100 million yen himself; a new Birth is born.

Ankh has nightmares about losing Eiji to the purple medals and other Ankh; a man has set up surveillance cameras all over the neighborhood, trying to force out Eiji and Ankh because they make the neighborhood look bad; now that Gotou is Birth, Kougami assigns Satonaka as Birth's new partner.

The Cous Coussier crew get thrown out of town where they decide to throw Ankh the birthday party for Hina's brother; the Yummy has holed himself up with a human barricade, forcing our heroes to wait until he surfaces again; the other Ankh waits for his other self to let his guard down so that he can become whole again.

Ankh is absorbed into a single body, but the two halves are still not completely whole; Eiji begins to wonder about his place in the Izumi family's life as Shingo tries to help him out in Ankh's place; Gotou helps Eiji on his mission to rescue Ankh, but Eiji is stopped by Dr. Maki.

Dr. Maki explains to Eiji about the process of becoming a Greeed and the dulling of the human senses, leading Eiji to discover that it is already happening to him; a Yummy is trapping people in ice and calling out for OOO's help, but HIna refuses to let him go; Eiji does battle with Ankh, destroying.his core medals.

After Ankh's cores were destroyed, he becomes in need of a body and yet again takes the detective's, also realizing that he's different now and creates a Yummy; Hina comes to the conclusion that she's been too selfish and reliant in regards to other people, making the decision to change and stand by Eiji no matter what; Ankh revives Uva and makes a deal with Dr. Maki to become his container of medals.

Kazari and Ankh butt heads over who is the leader of the Greeed; Hina and Gotou try to find Eiji's desire so that the purple medals will stop making him go berserk; Hina stops Ankh from taking medals from Eiji, but Kazari swoops in and gets the last of his nine medals; Eiji destroys one of Kazari's core medals, allowing Dr. Maki to steal the remaining medals from a weakened Kazari.

With Birth in need of repair, Erika retrieves the Prototype Birth driver in order to make do; because they are at a major disadvantage, Eiji and Gotou decide to go on the offense and attack the Greeed first; the other Greeed confront Dr. Maki and Ankh, with Mezool fully reviving and leaving Gamel, who also has the remainder of his medals.

Gamel rampages throughout the city trying to revive Mezool with one of her core medals; Eiji washes up on the beach with the purple medals acting up, and before he can find his driver, Ankh shows up to stop him from turning into a Greeed; Gotou has his Birth driver back, but he's in trouble and Erika gives the prototype to a familiar face.

Dr. Maki makes Eiji go berserk and fight Ankh when he won't give up the purple medals, but Ankh can't force himself to purposefully hurt Eiji; Ankh believes that one of his medals was broken by Dr. Maki and lets Hina know that her brother will be returned soon; Eiji discovers his true desire; Uva is fully revived.

Eiji receives a present from Kougami; Dr. Maki decides to make Uva the container for the core medals; Ankh returns to Eiji's side as they prepare for the final battle.

令子伙同北冈想要去拘留所看浅仓，可是狱方却不同意，并且还让浅仓换了一个新的律师森本。不了解浅仓的森本同意让浅仓看卡组，看来浅仓要再度越狱的可能性节节高升，浅仓是否又会在骑士间惹出什么风波呢？