Kunimitsu I and II: Masked kunoichis

Kunimitsu is a thief and ex-member of the Manji Clan, she is 44 years old. Kunimitsu started out as a petty thief but later joined the Manji Clan in order to hone her skills. Renouncing her Japanese nationality in order to remain anonymous, she trained hard to learn the art of Manji Ninjutsu and improve her thieving abilities. While initially abiding by the rules of the clan, stealing from the rich and giving to the poor, she later began to steal from the clan's funds for her own benefit. When Yoshimitsu, the head of the Manji Clan, discovered her thefts, the outraged leader banished her from the clan.

With few options remaining, Kunimitsu resorted to mending air conditioners to make a living. It was during this time that she heard of a valuable treasure, held by a young Native American woman, sought by Heihachi Mishima, the wealthy head of the Mishima Zaibatsu. Kunimitsu vowed to steal the treasure for herself, and entering the first King of Iron Fist Tournament provided the perfect opportunity to do so. However, upon confronting Michelle Chang, the pendant's owner, Kunimitsu was defeated in battle.

Humiliated, she retreated to her former home to stay with her grandfather. During this time, she learned from her grandfather that the sword held by Yoshimitsu (also called Yoshimitsu) was a priceless artifact, handed down through generations of Manji, and that, despite a lifetime of effort, he had been unsuccessful in forging a replica. Determined to steal the sword on behalf of her grandfather, Kunimitsu enters the second King of Iron Fist Tournament to face her former leader. When she confronts Yoshimitsu, Kunimitsu is once again defeated in battle.

Kunimitsu eventually turned her back on the tournament for her two-time failure at earning the Iron Fist title, retiring from her thieving lifestyle. She later married a shinobi and gave birth to a daughter called Kunimitsu II. Since then she has separated from her husband, but they are on good terms.

Kunimitsu is a very enigmatic character, speaking few words and revealing little of her personality. However, it can be deduced from her actions during her time in the Manji Clan that she is a cold, selfish person with a greed for riches and valuables. Despite this, Kunimitsu does not seem to be completely heartless, as she seems to have a fondness for her grandfather who, in turn, was welcoming to her after she returned from her time spent with the Manji Clan. It is strongly implied that her daughter looks up to her, as her daughter goes after Yoshimitsu after learning of Kunimitsu's pursuit of his sword long ago.

Kunimitsu is 173 cm tall and has an athletic physique. She has red hair which she keeps tied into ponytails, and always keeps her face hidden behind her trademark white fox mask. It is, however, still possible to see her face, which reveals her to have long red burn or claw marks across her eyes. Kunimitsu always carries her signature kunai blade. Kunimitsu wears a purple side-tie dress with floral decorations, white boots with black knee pads and matching gloves and vambraces. The flower patterns on her outfit are those of Japanese wisteria, which have a wide range of symbolism including immortality, loneliness, and love. However when she goes swimming she wears a watermelon patterned bikini and when at home she wears a formal purple kimono.

Kunimitsu was once considered to be one of the fastest fighters on earth, however her age and sickness has made her slower. Though lacking in strength and range, she can perform acrobatics to dodge, confuse, and evade her opponents. Because of her sickness, she is currently in hiding and out of action.

Kunimitsu II is the daughter of the first Kunimitsu. She is 22 years old. Loyal and loving to her family, Kunimitsu II dedicated herself to her shinobi training, taking up her mother's Manji Ninja Arts as the main template for her fighting style. After eventually surpassing her mother, she took up her mother's title, admiring her, and became a phantom thief, pilfering various high-stake items for high-class clients to give her family funds for a comfortable life. When her mother fell ill, she learned of the phantom sword Yoshimitsu; the legendary blade her great-grandfather desired to replicate, but could not attain as her mother was defeated by Yoshimitsu. Determined to make her mother happy, she sought after the very sword her mother coveted.

Kunimitsu II is a ninja who wields a kodachi and primarily a tanto. She has long black hair with a full fringe and a high ponytail. She wears purple eyeshadow and has two red markings under each of her eyes, typically representing kitsune fox spirits. She has gray eyes, and also appears to have a similar beauty mark on her chin as her mother, although hers is on the right side of her lip. Kunimitsu's Player 1 outfit consists of a white off-the-shoulder crop top with a turtleneck collar that has gold, mesh sleeves with gold characters written down the arms. Over this top, she wears a black and white wrap with red trim, and gold and orange designs in the shape of flowers, flower petals, and flames, with a high cushioned collar, and a red strap keeping the wrap folded. She wears matching shorts that are white on the right side with a red flame pattern that covers the entirety of the left side and reaches into the white material. The right side of the shorts have a gold and brown pattern, and at each hip the shorts open up to a gold mesh with a gold flame pattern with zippers leading down the side. Around the waist of the shorts, Kunimitsu II wears a red rope belt with a black fastener. Around this rope belt, eight long, orange and red leather straps with a single pouch on each are wrapped. The outermost straps have red tassels at the end held with a single yellow bead, and are connected to the belt via a strap with a metal ring. There are two red leather straps around Kunimitsu's left hip, and a single red leather strap around her right, connected underneath her shorts. Around her upper torso and wrapping underneath her top is a single, black leather strap with a silver fastener. Kunimitsu also wears thigh-high, red tights with protective gear around her right leg, up to just above her knee. Her right leg has a metal holster with three kunai that have purple handles around her upper thigh, and the protective gear around her leg has a gold flame pattern. Kunimitsu II's shoes are modified sneakers in the style of tabi, with split toes, a red and black vamp, red soles, and silver trim just above the soles. When swimming, she wears a purple body swimsuit. In casual outfits she wears a black Pac-Man themed shirt, black jeans and black sneakers.

Kunimitsu II's fox mask is white with a somewhat mechanical look, having purple eyes, red markings around the eyes and bottom of the mask, a red nose, and red on the inner ears of the mask. There are also large dangling charms attached to either side of the mask.

Kunimitsu II was especially interested in industrial technology, so she accepted and decided to go to Mishima Polytechnical School undercover as a student to investigate the Mishima Zaibatsu. During her enrollment at Mishima Polytechnical School, Kunimitsu discovers that Reina (Heihachi Mishima's estranged daughter) is attending the school under a false name, while Reina is simultaneously aware that Kunimitsu II is a thief attending the school under false pretenses. The two form an unsteady alliance wherein Kunimitsu provides Reina with information on G Corporation, while Reina provides Kunimitsu with the location of two ancient swords once used by the Mishima Clan to seal away a demon.

Both characters are very well versed with technology. Kunimitsu II has built her own wifi and VPN network in the family cabin in the middle of nowhere in a blossom forest. Kunimitsu II also has a mobile phone and a laptop and plays video games Kunimitsu refrains for it to keep her location secret.