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Gerumu
The Makai Ryuukitai (Hell's Dragon Army) Captain, Gerumu comes into Rauresu's service in Volume 7; his first appearance. He is a dedicated, somewhat stoic man. He serves as an advisor to Rauresu, much like Teteiyusu did before him. Rauresu makes a few, mischievous remarks about the differences between the two men which make the up-tight Gerumu uncomfortable, something quite funny to see. Like Zaadei and Asbal, Gerumu serves as comedy relief sometimes. Iria quickly befriends him, and he in turn grows very fond of her, even asking her to become his bride, the poor devil. When her war dragon is shot down and she is imprisoned, he goes to her rescue. He believes and hopes to gain in Rauresu's service, especially since he seems so honourable. His admiration for Rauresu, though, seems genuine. His fate is not a good one, however. After proposing marriage to Iriah, he becomes Kaaron's enemy. Together with Piki, Iriah's bird, he faces the death of his lovely Iriah. The bird saves him from Kaaron's evil flowers, and he decides to aid Rauresu. He is the one who informs Rauresu of the danger of Titan, and that Zaadei is united with the monster; he saw the unison take place. It is only when he tells this, and Zaadei's reason for the unison, that Rauresu finally reacts. By Rauresu's side to the end, he aids him in the fight against Zaadei. After the mosnter is finally destroyed, and the castle and their home totally destroyed, he finds Teteiyusu with Zaadei. In that instant, he would've killed Zaadei, but he decides against it, since he sees that Teteiyusu truly loves him.
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Iria
Karon's feisty, inquisitive younger sister, Iria discovers Rauresu's unconscious body after the destruction of Berk Castle. She immediately falls in love with him, and keeps him in a sort of glass casket till Karon discovers him, and Rauresu breaks free. Iria keeps a goofy, yet endearing white bird creature, Piki, as pet and means of transportation. She loves her brother dearly, sharing a close, warm relationship with him, but feels betrayed when she discovers his plans for Rauresu. With a breaking heart, she attempts to poison him in Volume 7, taking the flower Karon uses to manipulate Rauresu. When she is discovered, she orders Piki to deliver the flower to Rauresu, herself meeting up with Guremu, whom she has befriended. She is shortly shot down, given up for dead till Guremu discovers that she has instead been imprisoned by the frightened humans. While still a captive, she meets Hilda, who protects her from the taunts and jeers of the onlookers. Iria is also a part of the manga's comedy relief, but she also serves as a contrast to Hilda. She is not afraid to go into battle, and appears rough in Hilda's presence. Her childish love for Rauresu pits her against her brother, bringing anguish and indecision into her old, carefree life in Hades. In volume 8, Karon takes her flower of life, leaving her body to fade away. Sadly, her death occurs only moments after Guremu asks her to be his bride.
Rabi
Rabi looks small, somewhat like Guru Clef from Rayearth and he is just a cute. Short, wide eyed, smart, didactical in speech, prophetical as his name, meaning master, implies. He is Rodrique's friend and is his most powerful ally, since he was possessed by the power of Maruka, the sorceress who has chosen Rod as her champion and gave him Azel's mark. Rabi guides Rodrique, mentors him, and comforts him, but Maruka knows that Rodrique's destiny is much bigger than he realizes and thus, influencing Rabi, treats him different from any other man. At times, even wickedly. As Maruka, Rabi is incredibly possessive of Rod, claiming several times that he belongs to her. He is enraged when he learns that Kaimei has been driven from Rod's body, but still doesn't allow Rod to leave Maruka's service. Rabi is Asbal's best friend in the beginning of the manga, but fate chose it that they would not be close friends much longer. They are now bitter, violent enemies. Immersed in the battle, Rabi's face is always worried; always sad and serious, but at the same time coloured by cunning and anticipation. This makes him a very interesting character.In volume 9, Karon forces Maruka's spirit out of Rabi's body, and the small boy becomes himself again: a sweet little child who quickly inquires where Asbal's moustache has gone.
Kukuru
Since the beginning of the manga, Kukuru is friends with Hilda and Rodrique. He lends them a supporting hand in their problems and their mishaps with Rauresu, even if he not the bravest of people. He is rather cute, is dressed like a modest peasant, and has huge, clear eyes. He is kind, happy, and is, at times, the manga's comedy relief. He is very attracted to Rodrique, coming across as a big puppy love relationship, but he is very much in love with him. He feels sad as well when Rod is in pain as well as when he realizes Rod will never love him more than as a friend. Kukuru also befriends Rabi, and becomes part of the peasants that stand up to the evil that threatens their land. He dies in volume 6, in front of Rod's eyes, ripped apart by Rauresu, who at the moment was under Karon's control. Rodrique holds him in his arms as he dies with a smile, happy that at least died in the arms of his beloved Rodrique.
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Sherril
She is Hilda's young musician friend. Her name may also appear as Shierril. She is very pretty with large, luminous eyes, thin body, curly hair, and good nature. Her beauty is marred, though, by her sadness. She is plagued by a terrible sickness that makes her cough blood. It appears that her lungs are broken and this comfines her to a bed. She runs away, not wanting to be a burden to Hilda, who already has many problems, and is rescued by Teteiyusu. He cares for her, keeping her with him, and she becomes attached to him. She even feels a small amount of love for him. She is the only person apart from Rauresu whom he's been sincerely nice with. Caring for him, she comes to Teteiyusu's rescue when he is about to be killed by Rodrique in volume 6 and stands protectively in his way. Her tragic existence, her sad life and knowledge of her sure death, drives her to act blindly in that moment and she jumps to her death from a window near the fight, while she is still defending Teteiyusu. The angel rushes to her rescue, but Zizi blocks his way. Shierril had hoped the angel would save her from death but, as he is detained, realizes erroneously that he did not care. She dies instantly with tearful eyes and a sad soul, yet happy because she will now suffer no more. After she dies, her soul is imprisoned and twisted into a monster that faces Hilda and tortures her. As an act of kindness, which he wont admit, Rauresu finally kills her and her soul is freed at last. She rests in peace after she gives Teteiyusu one last kiss of forgiving love.
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Berk
Though his face is lovely, he hides under a mask. Perhaps this act mirrors his depraved soul. This man is cruel and vicious; bloody insane. He is the lord of Berk Castle, a magnificent manor where he lives his life grandiosely devoting his time to his treasured sadistic practices. He spends his most splendid hours severing people, ripping them apart, cutting them and watching them bleed. He eats among hanging bodies. He keeps Rauresu for a time as his prisoner and has a delightful time slitting the Demon Lord's skin with a knife and licking his blood. He kept Rauresu naked while he did this! He is a very wicked man and his cruelty is mixed with sensuality. Zaadei and Zizi serve him, serving as body guards and henchmen. Zizi becomes blind with loyalty, which he never acknowledges. Berk is a mean, selfish, egotistic, pompous man. He dies insane, his precious face deformed by a curse that made his skin shrivel. The curse made him pay dearly for licking up people in such a sick manner and dies. He dies as the flames consume his castle in volume 6.
Zizi
She is Berk's most loyal servant and ally. She follows his every whim, waits on him, and even baths him. Her mind is obsessed with his power and sadism. She is dressed very formally, almost manly, is skilful with a sword and is a true leader. She is very devoted to her duty and Berk's commands. It seems there is no reason in Zizi's life but her duty. This also makes her a sad character. She is not considered lovely, having the appearance of a young boy, and maybe this is the reason why she takes a sort of solace in Beck's service. She has no friends, not even Berk, and keeps to herself like Karon. When Berk falls under his curse, she also becomes afflicted with it. The shrivelling begins at her arm, then travels to her face. When Berk Castle goes up in flames, she becomes insane, sports Berk's mask, and sets out for revenge on Rauresu and Hilda, whom she tried to kill while she slept in the manor. She meets her death in volume 5 by the hands of Rauresu after she impales Hilda with her sword.
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Cross ßeta
___________The servant to Kaaron, Cross ßeta is a sneaky character. He, as with the other Crosses, is the shadow of Kaaron. Therefore, in volume 7, he doesn't die because Kaaron doesn't die. He follows Kaaron, but is not extremely loyal. Zaadei despices him, when he brings him the flower of life for Teteiyusu. Evil in nature, as the manga draws to an end, Beta planned to destroy Kaaron, deeming him unworthy to rule Hades. It is then when he kills him and therefore kills himself. He forgets, you see, that as Kaaron's shadow, he will also die.
Marion
Beautiful and young, Maron takes part of a Seimaden story published separately from the Seimaden manga, called Yami no Hanakanmuri. This is the story of how Prince Rauresu, when he lived as a human lord, became the king of the demons. Marion, a demon with childish features and a wolf dog, Kereberus, plans to transform the arrogant Prince into their king. He sees a lot of potential in Rauresu, who is attracted to blood, killings, and is quite conceted. In order to make him their king, he kills Erise, Rauresu's love. This drives Rauresu insane, and removes all sense of humanity from him. Rauresu kills Kereberus, and Marion in his rage.