(佐々木 禎子, Yakushi Akari, lit. "Light Medicine User"): is a genin-leveled shinobi from Konohagakure. Born and raised by a distant branch of the Yakushi clan whom for unknown reasons were exiled from Konoha and resided in Otogakure, Akari was surrounded by medicine and experiments for most of her life, which naturally, had an odd effect on her mind. Though she was taught about the arts of medical-ninjutsu, those whom she lived with had much more sinister plans for the young Kunoichi. Taken by one of the scientists within the small village, Akari was injected with an artificial enzyme, that drastically altered her mind and body. Just as the village had wanted, the Cursed Seal Project had begun, with Akari being it's source. From then on, Akari had her memory wiped, and she was abandoned outside of Konohagakure. Taken in to a small Shinobi family of medical-nin. Akari was taught about the human anatomy, as well as several medical techniques. She entered the academy and passed with flying colours, and became a Genin. Akari is very hot-headed, and has a sort of 'tomboyish' attitude. Though she has no recollection of her past, Akari has a dark, sadistic, and somewhat evil side that she rarely shows. After several years of training as a Genin, she passed the Chūnin exams, and eventually became a Jōnin, and one of Konohagakure's leading Medical-nin.
(医療忍術, Iryō-Nin): (lit.'Medical Shinobi') are ninja who specialize in medical treatment and use of medical-oriented jutsu to heal others. Becoming a medic-nin requires high intelligence and excellent chakra control. A medic-nin is trained to avoid getting injured in any way, for the reason that if they are injured, then there would be nobody to heal the other members of their team. Medic-nin accompany other ninja on high ranking missions to increase the survival rate of the squad. The knowledge of a medic-nin can be used for a variety of purposes. The Inuzuka's veterinarians specialize in the treatment of ninken. Medicinal knowledge can be used to create deadly poisons. Field medical-nin, when in the field or on the battlefield, are equipped with Medical Pouches in order to carry medical supplies as well as their weapons. As a medical-nin, Akari often uses her knowledge of the human body to damage her enemies, as well as heal her allies.(千本術,, Senbonjutsu): (lit.'Needle Techniques') are a specialized field of weapon techniques, requiring the use of only senbon needles. It involves a mixture of physical and chakra-made senbon and used to target the bodies Tenketsu (点穴, chakra points) in order to immobilize them (or cause them maximum pain) as fast as possible. Because it requires pinpoint precision to be effective, it is generally used by clans such as Hyūga because of their chakra seeing Dōjutsu (瞳術, eye techniques). Senbonjutsu users are often seen with Umbrellas. Though she doesn't have the Byakugan, or any Dōjutsu for that matter, Akari's in depth knowledge of the human anatomy allows her to use senbonjutsu almost as efficiently.(の呪印術, Shinzen Juinjutsu): (lit.'Natural Cursed Seal') Akari is the product of several experiments intended to drastically enhanced the capabilities of humans. Known as the 'cursed seal project, Akari was forced to take part in an experiment that artificially created something that had been sought after for many years: the Cursed Seal. Akari was selected for such experiments because of a natural enzyme she had possessed, that allowed her to drastically boost her power, all the scientists needed to do was complete it. With this 'natural cursed seal', Akari has the ability to transform her body to adapt to the situation. She can create axes on her arms, create jets on her feet in order to increase her speed, or form chakra cannons all over her body to devastate the enemy. Though she is unable to fully transform, when allowing the cursed seal to activate on her body, Akari's base statistics such as speed and strength all increase drastically.