Born in southern Ireland to a woman named Michelle Leon and a father named Brandon Adair he (Terry) is the oldest son of the two children they had. Terry's mother was attacked by a crazed individual (whom was not seen again after the attack presumably he was caught or he died somewhere) and was hurt during her pregnancy but recovered due in no small part to the help of the town's doctor. Terry's parents where unimportant in the overall scheme of things with his mother being a nurse and his father being a construction worker and had only met when their friend introduced them to each other. Terry himself was often left with his rough and unready father whom showed he had little patience for little Terry but did his best to take care of him none the less being that Terry was his son and he wasn't about to become an abusive alcoholic father. His mother also took time to be with him when she could but was often to tired to do much and often got into fights with Brandon on who would raise Terry.

Eventually Terry was handed over to his uncle who lived nearby and worked at home as a farmer and was a devout catholic. Terry was raised there the majority of the time by his aunt Rose whom loved him like the son she couldn't have. Terry was often read parts of the bible and about the history of Ireland itself by Rose who was patient and understand of people who where not catholic unlike the more stubborn uncle. When he was old enough he split his time between reading and working with his dad on small projects that he was old enough for,which were few and far between and often it was unpleasant but respectable work none the less, and working on the farm that his uncle

As he grew older he noticed that he himself was a more physically tougher boy than his friends and classmates due to in no small part to the hard farming life he lived and the work with his father. When he got into a childish fist fight he often ended up giving people bloody noses and or outright overpowering kids who were from backgrounds that weren't like his. School itself was an strange ordeal and one that he didn't specifically excel at for the most part but did well enough. He wasn't a book smart child but liked the stories and challenges that came with reading and things like science and math. While his father helped him with math his mother and aunt helped him with his other projects and studies. He grew especially close to his aunt and started to go to church with her after school and learned to be tolerant of others but also to enjoy and praise the holy bible. However the arrival of his younger brother changed his life.

Terry was often annoyed by his little brother's crying and the attention given towards him by his mother Michelle caused him to spend more and more time with his extended family. However he often was in charge of his younger brother and was there for him when his parents where not and even his first word was Terry. Terry was there for his first steps and when he hurt himself with scraped knees. It was more out of a respect for family than love for his imminent sibling that he did those things though. When Terry became a teenager he started to consider a teaching career despite pushes to become an athlete by his dad and uncle. When things got to stressful in Terry's life he was often found going to churches to talk out his problems. His local priest, Father Mance, was often kind and considerate towards the boy despite not being from around here, coming from Russia, and became a mentor figure for young Terry. His little brother tried to keep up with him but failed miserably in his attempts to do so. And gradually Terry began to slip away from his family and more towards those around him. He had few and far between girlfriends and eventually he started to burrow himself into studying languages hoping to become a language teacher with the help of his mentor Father Mance. His most treasured item during this time was a Celtic cross worn by Mance until Terry's sixteenth birthday.

Towards the end of his school years Terry and his younger brother were out for a stroll when Terry and his brother were both attacked by a strange being whom was protecting a nearby playground they were walking past where a boy had died two weeks prior. Terry and his brother were afraid of the being though Terry's own inner strength made him brave enough to take most of the bad shots for his younger brother who insisted that he save himself. Terry was only aware of this being due to the fact that he had a strange sixth sense of sorts that allowed him to interact and see beings that passed on and his younger brother only had a basic awareness of it seeing the horrifying creature that was attacking them as a blurred vision compared to Terry whom saw the being in it's whole. Their father saw them being attacked and rushed to their aid despite not knowing what as happening and not being spiritually aware and only hurt himself in the process. Terry and his brother were almost certainly going to die until Father Mance steeped into the fight with a big brown war hammer. Father Mance displayed abilities that no one could have predicted and quickly dispatched the monster with ruthless ease which frightened young Terry. Much to Father Mance's annoyance before he could finish the monster off he was interrupted by a man in a black and white robes and was the lieutenant of a squad of some sort. The man made the monster vanish and then turned on Mance saying that he should have not gotten involved in which Mance retorted he didn't intend to let shinigami come late and cost boys their lives.

The man ignored that statement and went to erase the memory of Terry and the others despite his brother's arguments. Mance intervened on behalf of his student Terry saying the boy involuntarily used something called Fullbringer powers during the fight which Terry was confused about and told him that he didn't want his memories removed and that was a statement his younger brother agreed with. The Lieutenant gave Mance a deal after a firm argument from both parties and wiped out his brother's memories of this while keeping Terry. While his brother and father were sent to the hospital Mance and Terry both went back to the local chapel and Mance personally took care of Terry saying from this point forth that Terry's life would never be the same. Terry said he knew it wouldn't be but that's what he asked for.

Terry and Mance became in tangled in training in the outbacks of southern Ireland and occasionally France where they trained in the mountains. Mance told him about the basics of what was happening such as Hollows and Soul Reapers and told Terry he was like himself, a being known as a Fullbringer and that his mother had been attacked by a Hollow before his birth and some of that being's energy resided in him. Terry was a slow learner but he improved and eventually grew to have a certain strength in his Fullbringer power being able to conjure up a Claymore from his Celtic Cross. After this Terry and Mance left Ireland and France behind and left for Japan. Terry at this point had learned some Russian and Japanese due to Mance's recommendation due to Japan being where things normally hit the fan. Terry spent time as a priest in training there but gave that up once he had trouble coping with the trouble that came with knowing of the existence of the Soul Society. However he still followed the beliefs installed in him by his aunt and uncle. His brother often tried to contact Terry to little success normally. Terry would eventually gain a firm understanding of Japan after some year or so being there. Mance let Terry live his own life and was sent to a school where Mance's friend was a principal and gave him a spot for tutoring English for students.

Terry grew comfortable with his life up until his twenty first birthday where he came home from a party with his newer friend and companions only to find the church that Father Mance lived in was under attack. Terry was unable to find Mance until it was to late. Mance had been left lying on the ground in a pool of his own blood and his last words to Terry were that he was proud of the man the boy had become and that this wasn't his fault. Making his own path was far more important than the life of an aging priest. Mance pasted from this world as the same Shinigami came and brought him to the new world Terry took his money and quit his tutoring job after a week later and left for his home in Ireland. In his time in Tokyo he had only encountered a dozen hollows and only three of which he defeated himself. Terry's life would live the rest of his days there he decided before one day a strange ornate letter was given to him and a man requested his appearance and it was signed anonymously but the details inside of it proclaimed frightening knowledge of Terry's Fullbringer status. He was determined to find out who it was who sent this letter to him.

Magical Medical Kit: This medical kit has been handed down from generations to generation in Himikos' family. Don't let the condition of the kit fool you.
Inside contains; Bandages, Scalples, Rubbing Alcohol, A Thermometer, Needles and A Mouth Mask to stop germs spreading from the mouth. Strangely, she never runs out of equipment...
All of which Himiko uses to her disposal for weapons. She can also bop people on the head with her case.

By using her power, she can use her scalpels to attack her enemy whilst they float in the air and strike with slices and jabs for close combat. As she bends the bandages to her will, they can become like chains, ceasing the enemy, stopping them from escaping. She can use her rubbing alcohol as mini fire grenades. She uses her needles like throwing knives that can inflict later effects, such as; Dizziness, Nearsightedness, Hallucinations and Poison.