Ai Coleman

age: 15 years
sex: male
height: 171 cm
weight: 55 kg
eye color: black
Affiliation: Works part-time at the Kasukabe Clinic

Ai Coleman is a former human resident of Hole, who resented his life and wished to become a magician. He is the original personality/base of Aikawa, Kai, and Kaiman.

Ai appears as a young teenager with pale skin and messy black hair that often covers his face. This, combined with his thin build and typically apathetic expression, gives him a very stern overall appearance.

Ai was an extremely dour and resentful teenager. Despite his grandfather's cheerfulness, Ai was often apathetic and uninterested in his life, feeling like he didn't belong in Hole and claiming that it "wasn't his world" and that he "didn't find a reason to live in this town." He seemed to harbor immense resentment and hatred toward himself and his humanness, and desired nothing more than to become a Sorcerer and escape to his world, believing that everything he was would be found on the other side.

Despite his extreme apathy, he was studious and very determined when something was at stake. He would easily study and research for hours on end, well into the night, to achieve his ultimate goal. Likely due to his self-loathing, this also manifested itself in extremely reckless behavior, such as jumping into the Lake of Wastes despite being fully aware of its status as an extremely toxic cesspool that would undoubtedly kill him.

Ai was a human who resided in Hole, living with his grandfather. It is unknown where or what happened to his parents. Throughout his life, he viewed the magi who came to Hole with a mixture of respect and resentment, hating being merely human and longing to become one himself.

After reading Dr. Kasukabe's book, "The Sorcerers and Us", he visits the clinic and immediately asks him how to become a Sorcerer. Despite being initially rejected by Kasukabe, Ai persisted and continued to appear around him until he at least invited him to his laboratory. Though he initially seemed puzzled by the numerous vacuum-sealed bodies of Magic Users in his laboratory, he quickly became enraged, simply expressing his desire to become a Sorcerer again.

From then on, Ai began working with Dr. Kasukabe as an assistant, both in his clinic and in his research into the physiology of magicians. Although he kept his wishes secret, Ai would often remain in the laboratory for hours after closing time, continuing his fervent research on how to surgically transform a human into a magician. When asked again why he so vehemently desired to become a magician, Ai simply replied that he hated humans being preyed upon by sorcerers and that he saw no reason to live in that city.
About a year after Ai began working at the Kasukabe Clinic, the two rushed to the Lake of Wastes after learning that the Militia had dumped a Mage there, hoping to retrieve him before the toxins maimed him beyond repair. Seeing that the Mage had already been dumped and was deep within the lake, Kasukabe suggested giving up and returning. Ai, however, unwilling to miss the chance of a live specimen, jumped into the lake.
Although he managed to recover the body, the toxic waste from the lake had already burned and infiltrated his organs.

To Kasukabe's surprise, Ai handed him his research notes and requested that the surgery he recorded there be performed on him. Kasukabe had reservations; however, Ai pleaded with him, as he would be dead anyway if it didn't work, and that it was his dying wish. At his request, Kasukabe performed the surgery, certain that it would not be successful. To his immense surprise, Ai awoke after the surgery was completed. The doctor carefully and avidly documented his recovery process leading up to his recovery. However, during his recovery process, Kasukabe noticed that there were nights where Ai seemed a little strange and she felt a sinister aura around him.

Once recovered and discharged, Ai decides to leave the clinic. As he leaves, he cryptically tells Kasukabe that he felt like he had "become the deformed city" and that he was "now a magician." That same day, he finds two magicians who had come to practice in Hole and tries to convince them to take him to the Sorcerer's World. However, unable to produce smoke to prove it, they beat him to death and abandoned him on the street with the upper half of his body in a sewer. A night of toxic rain had eroded his upper body beyond recognition, though asphyxiation caused by some sort of magic that increased the concentration of substances and put pressure on his windpipe was cited as the cause of death.

As he was apparently killed by magic, he was given the badge number 96925 for identification in case he returned during the Day of the Living Dead, and was then buried in a grave in Hole. As his grandfather was working, Kasukabe attended his burial in his place.

Unbeknownst to Kasukabe and his grandfather, an evil presence had entered Ai's body along with the toxins in the lake and taken over. His body revived, and, transformed into a new person, he departed for the Sorcerer's World.

-Medical knowledge: Ai was a medical prodigy, learning quickly from Kasukabe and even developing a surgical procedure to turn a human into a sorcerer.
-Substance Augmentation Magic: Following her successful surgery, Ai obtained a severely reduced version of the "donor" sorcerer's Substance Augmentation Magic, though its exact nature was not revealed.
-Resurrection: After becoming the vessel of the lake creature, Ai gained nine tiny skulls in his cervical vertebrae. Each skull can resurrect him after death, albeit only once. Additionally, this led to the creation of two of his split personalities: Aikawa and Kai. As part of the agreement, he can live as a normal sorcerer, but the entity will periodically take over his body to fulfill its own purposes.