Seiichiro Aoki

Origin

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Seiichiro Aoki was born in a family of kazetsukai who control the wind. In order to optimize his power, a kazetsukai must have a person you love to protect. Due to his abilities of seal, even if he hadn’t a person he loved, the young man Seiichiro was already the best kazetsukai of his clan. That was why Daisuke Saiki admired him and spent a lot of time with his uncle.

Meet the Other Seals

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Years past, Seiichiro felt in love and married with Shimako. He had a girl with her who called Yuka. He became a copy editor at Kadoka Shoten. A day he had a report to write about soaplands of Shinjuku. He met Karen Kasumi and became friends.

One day, Seiichiro goes to his work place and falls on Arashi Kishu in front of Togakushi Shrine. Arashi learnt from a telepathic conversation with Hinoto that the Sacred Sword was stolen by one of the Seven Angels. She feels something but not hostility. At this moment, several men in black who reveal to be shiki make their appearance. For security, Arashi creates a kekkai. Seiichiro was imprisoned in this kekkai. He decides to fight with her against the Shiki. Arashi uses her saber to fight them whereas Seiichiro uses his wind abilities. After the destruction of Shiki, Arashi cancels her kekkai. Seiichiro receives a call from his chief telling him he is late. Seiichiro must leave; so he introduces himself as one of the Dragons of Heaven, lets a visit card and goes to work.

He meets also Yuzuriha Nekoi, discusses a little and lets to her a visit card. Days past, Yuzuriha calls him to take an appointment with him and Daisuke. She was surprised he changed his work. Indeed, now he works for Asuka. Daisuke and Yuzuhira arrive at Yasukuni Shrine. Seiichiro joins them. Yuzuhira and Seiichiro tease Daisuke. Moreover, Seiichiro reveals he is Daisuke’s uncle. Daisuke brings them back to a serious discussion and talks about the last destroyed kekkai.

Incapacity to Help

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When Kamui Shiro chooses to become a seal, Seiichiro and the other seals fells something is wrong at Clamp School. After killing his sister Kotori Mono, Fuma Mono wants to kill Kamui. Fuma tries to retire the sacred sword. But Kakyo Kuzuki takes possession of Kotori’s corpse and stops him. Kotori doesn’t want her brother to kill Kamui. Arashi, Sorata Arisugawa, Yuzuhira, Inuki, Subaru Sumeragi, Seiichiro and Daisuke arrive and see this awful scene. Fuma dismembers his sister and runs away without the sacred sword. Kamui doesn’t support the situation. Once again, a person he loves was killed.

Seiichiro only can stay with seals. It’s Subaru who succeeds to bring back Kamui. Kotori was buried inside Clamp School. Kamui remembers his old memories in front of Kotori’s grave. Sorata arrives, hugs Kamui and tries to comfort him. The other seals do their appearance, even Karen Kasumi. She is surprise to see an old acquaintance in the person of Seiichiro Aoki. Karen introduces herself to Kamui. She delivers him Tokiko Magami’s message: to bring the sacred sword at the heart of Clamp School. It is at this moment that Nokoru Imonoyama, Akira Iyuin and Suo Takamura do their appearance. They will show them the emplacement to protect the sacred sword.

Nokoru, Akira, Suo and the Seven Seals arrive at a fountain in the center of Clamp School. Nokoru asks Kamui to put his hand on the symbol of the school. Kamui does it and a secret passage is opened. Seiichiro sees Kamui seals the sacred sword whereas Nataku steals the other one to bring it to Fuma.

Friendship

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Time elapsed. Daisuke was killed by Fuma and Shinjuku was destroyed. Karen calls Seiichiro at her apartment and prepares a tea for him. They talk about Shinjuku and the last events. She offers her condolences for the death of Daisuke. Seiichiro explains he must not be sad because Daisuke it was his wish to die for Hinoto. For Karen, it is impossible to not cry the persons you lost. They learn at television that the Yamanote Line is attacked. Karen wants to go alone because Seiichiro has a family and the other seals are too young. Seiichiro disagrees with her and wants to go too. But Karen has prepared this possibility. She put sleeping pills on his tea and tells him no one will cry for her death. Seiichiro doesn’t want to stay without doing anything. He cuts his legs in order to cancel the sleeping pills’ effects. He goes at Yamanote line, enters the kekkai and finds Karen fighting Yuto. He attacks him, but Yuto proposes to cancel their fight in order to take care of their injured partner. Karen accepts the draw and disrupts her kekkai. She requires Seiichiro some explanations. He answers that he would cry if Karen dies. She thanks him.

Karen’s Request

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Days past, Karen is sad to see Yamanote line destroyed. She was created this kekkai. She met Seiichiro. She asks if his family is safe. Seiichiro says everyone is ok. She is glad to hear that. Karen redoes her promise to not fight alone. They feel a new earthquake. Karen tries to stop Nataku; but he succeeds to destroy a new kekkai. Even if he is an angel, Karen sees in him an innocent child. Tokyo is on ruin. Karen is wondering if Nataku is the responsible. But even if he is an angel, she is worried about his sadness. Seiichiro arrives and apologizes to be late. Karen is amused because Seiichiro doesn’t wear his costume like always. He apologizes; but Karen is glad to see another face of Seiichiro. They go to the Diet Building. The true Hinoto still tries unsuccessfully to stop the dark Hinoto. Karen and Seiichiro arrive. She tells them that the next target is Ginza. They decide to go alone at the great joy of Hinoto.

Karen and Seiichiro arrive at Ginza. A feeling of danger surrounds the place. Karen creates a kekkai and asks Seiichiro to do the same. She wants to be sure that place won’t be destroyed. It is at this moment that Nataku attacks Ginza. When he sees that is Karen is opponent, Nataku is sad. But his duty is to destroy the kekkai, so he attacks them. They dodge each attack and they are wondering why Nataku launches always the same attack. Nataku begs Karen to leave the place. For Karen, this request is a proof that Nataku has feelings. He explains to her that he is a clone and he always heard he has no soul and no feelings. Karen understands because she lived the same thing with her mother. Seiichiro tries to intervene, but he is stopped by Karen. She asks Nataku if he knows what do the seven angels. He reveals that he had some information by Tomoharu Tojyo. He said a Yumemi told him that his grand-daughter would die twice and would be concern by the “Jour de la Promesse”. That was why he asked Nataku to steal the sacred sword in order to be sure he would not die. Karen is happy to learn that there is a person who loves him. She asks him why he joined the dragon of Earth. He explains he wants to be with Fuma. It is another proof that Nataku has feelings because he loves Fuma. It is at this moment that Fuma does his entrance. For Karen, he looks like Seiichiro, her dearest person. Fuma sees that Nataku has another wish. That is why he wants to check which one is the more important. He attacks Karen, but Nataku saves her. Fuma requires Nataku to leave, but Karen tells him to follow his heart. He takes his decision. So Fuma launches a massive attack. Seiichiro dodges it, but it is the intervention of Nataku which permits to Karen to not be injured. Fuma stares at them. Karen asks Nataku to let her, but he doesn’t want. He knows that Karen has no chance with Fuma. He stays to protect Karen and Fuma kills him. Nataku has just the time to say that the Yumemi Tomoharu Tojyo saw was Hinoto. Karen argues Fuma to explain this. Fuma explains that was the dearest wish of Nataku: to die for his dearest person by the person he loves. Nataku assimilates Karen as his mother and Fuma as his father. Karen doesn’t understand why he killed Nataku if he knew that. Fuma thinks everyone must have their wish realized. Some people like Karen wish to die for someone, others have a different wish. For Karen, it is intolerable to kill someone. For Fuma it is necessary if they want to take care of their dearest thing. Karen becomes completely mad and attacks Fuma. But he is too strong. Fuma decides to leave in order to respect Nataku’s wish. Moreover he lets Nataku’s corpse to Karen and Seiichiro because he knows they will take care of him.

Jour de la Promesse

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The “jour de la Promesse” arrives when Kamui unseals the sacred sword. Seiichiro is ready to the final war and stays with Kamui in order to fight the seven angels.

Powers and Abilities

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High Jump

Due to his superhuman physical abilities, as well as his natural affinity to the wind, Seiichiro is able to leap to heights that seem inhuman to most.

Kazetsukai

Being born into a family of Kazetsukai grants Aoki the abilities to command the winds. Even in his family, he is counted as perhaps the most well adept at using his wind abilities, and he has been shown to be able to decimate dozens of Shiki without moving.

Kekkai

Seiichiro, like all of the other seals, is capable of creating a Kekkai, a barrier that transports anyone involved in the Jour de la Promesse to another dimension that allows for to combatants to fight without the far of injuring any innocent people.