a gray-haired boy, 17 years old, about 175 centimeters tall. one of the members of the "IV" hunters. These are people who keep order and eliminate danger, such as monsters and people/robots infected with a virus. This boy was a quiet man, but he tried to be honest and fight for justice. he has no goal, no desire to live after a terrible past. Since childhood, he was a victim of torture and laboratory experiments. he hates the smell of bleach because it reminds him of those times in the lab. Now