* First appearance: Battle 175 * Age: 18 * Type: Sei * Type: Satsujin Ken * Yomi Symbol: Ice * Martial Art: Command Sambo Boris Ivanov is a member of Yomi, a practitioner of Command Sambo, and the leading disciple of Alexander Gaider. He is the second Yomi member to fight Kenichi in a duel and is one of the first four Yomi members transferred to Kenichi's school. Boris is usually seen in a military outfit due to his loyalty to his country and has a muscular build. His hair is silver and spiked in the back and usually has a small headband around his forehead. He was seen in a school uniform to fit in at Kenichi's school. Being a Russian soldier and the right hand man to a colonel, Boris frequently acts in a militaristic manner. He strictly upholds orders and believes orders are absolute, as he will follow any order from his master or his teacher without question or hesitation. He also particularly hates anyone who disobeys orders, and seems jealous when he finds someone with greater loyalty than his. He seems to have a small degree of respect for anyone who is willing to speak against him openly. Although he is an enemy of Kenichi, he will work with him to take down some opponents and find ways to listen to him, such as hearing Kenichi's words as advice and tips, not orders. He will also find loop holes to turn orders to his advantage without going against them. Like Ethan, he was one of the few Yomi students to actually leave a good impression on most of the students their and held a respect for his teacher, Ono Kyouko, doing anything she asked without question and always did good deeds at his school. The teacher always thought of Boris as a very kind person, which may not be an overestimation, as he did ally with Kenichi to keep her safe from his own men due to loop holes he found, suggesting he may not be as bad as he seems and actually be more lenient towards Katsujin Ken. He gets along well with his militia men as they follow him as soldiers and commander but doesn't seem to listen to Kanou Shou until he hears his master's orders first. Boris is also the first opponent to acknowledge Kenichi for his strength, even to the point of even conceding that he is stronger.
First appearance: Battle 258 Age: 80+ Type: Sei Type: Satsujin Ken Yami Symbol: Water Martial Arts: Jujutsu (Kushinada Style) Kushinada Mikumo is the Jujutsu Master of Yami's One Shadow Nine Fists and the Master of Kushinada Chikage. It is worth noting that she is the only female member within the Nine Fists so far. Mikumo appears a curvaceous and very well-endowed woman in her mid 20's to early 30's. This is most likely due to her family's experimentation on their bodies to slow down their aging process. She has been seen driving in a sports car (clashing with her Japanese style hakama) towards a destination presumed to be Diego's location not long after Diego transformed into the "Angry Steel Fist." She has long waist length black hair, wears an open Kimono to show off her bosom and usually wears a bead necklace around her neck. In her youth, her hair was shorter, down to her chin and her breasts were not as large and she was slightly shorter. Mikumo is one of the most emotionless and serious members of Yami shown. She rarely shows any other emotions other than surprise and always keeps a melancholy face. She believes in keeping your emotions in control is important for battle and one should not lose your temper or it will dull your skills. She treats Chikage very well, more than any other member of Yomi, possibly because she's her disciple and seems to treat her as her own daughter. She seems to be fond of meditating, as she tends to meditate when she has free time. Mikumo holds the belief that empathy is weakness and that the strong do not let their heart be shaken by the weak. She used this to her advantage to make Ethan Stanley fight more ruthlessly against Kenichi to save his sister. However, she acts oddly feminine when she recounts her past adventures with Hayato, chiding him for being "hardly charming," covering half of her face with the sleeve of her hakama, and referring back to the events as "the hot fires blazing between us." Mikumo has worked with Fuurinji Hayato against Yami in the past, and a flashback reveals a much younger Hayato and what appears to be only a slightly younger Mikumo on the battlefield. It was hinted that the two may have shared a deeper relation at one time, though Hayato denies this, saying that "the only things that burned were the forts and tanks." What has turned her to the path of Yami is unknown at this point; however, it is suggested it was after the loss of someone she held dear.
* First appearance: Battle 266 * Type: Sei * Type: Satsujin Ken * Martial Arts: Chinese Kenpo Ro Jisei was one of Ma Sougetsu's old friends and, according to Ma Kensei, was responsible for leading him down the path of the Satsujin Ken. He was a member of Yami and Chou Enshin's master. He is a member of the One Shadow Nine Fists while Ma Sougetsu is not present. Ro first appeared with his features mostly hidden during the One Shadow Nine Fists meeting after the death of Kanou Shou, to which he expresses his belief that Shou wasn't worthy of inheriting his techniques without explicitly stating his reason. After that, he doesn't appear again until his disciple's match against Tanimoto Natsu. Ro and Sougetsu watch the fight until Tanimoto wins the match and earn the Moon symbol of Yomi. Ro's fate as well as Chou's after they are replaced is unknown, but it is implied that he is either training his disciple or is in search for another disciple after his own was disposed of.
Elaine is King's sister, and the Guardian Saint of the Fountain of Youth. She has long and thin eyelashes, and cut hair that reaches her neck. She wears a single white one-piece dress which is tied together with a butterfly knot at the back. Elaine is shown to be a kind, caring and forgiving girl.
Hamaguchi first appears in the third episode as the boyfriend of Junko.
Nagasumi is the protagonist of the story. Nagasumi is likely the only one in his family who has a clear head, apart from his grandmother. When push comes to shove, Nagasumi demonstrates large inner strength. (Source: Wikipedia)
Sun is the daughter of mermaid Yakuza Seto Group's boss, Seto Gozaburo. She is a firm believer in the chivalrous spirit of mermaids, and is devoted to her role as Nagasumi's wife. Not yet being an adult, Sun is not able to completely maintain her human form, and her legs revert to a tail whenever she comes into contact with water. (Source: Wikipedia) Sun is well known in her school due to her figure, tall height, and model like appearance.