Philosopher Stone Human

Philosopher Stone Humans look exactly like humans and, in most respects, are human. However, their blood contains liquid Philosopher Stone that gives them different abilities from the average human.

Origins
On the Alchemic World, years after Van Hohenheim became a Philosopher's stone, he had two children with Trisha Elric, Edward and Alphonse. His sons became the first of the Philosopher Stone Humans. After they were teleported to the Real World, their descendants also became Philosopher Stone Humans. Currently, they have only been a total of four generations of them and they are all still related by blood.

Racial Characteristics and Abilities
Philosopher Stone Humans have all of the same physical abilities of a normal human. They are also able to mate with humans with no consequences.

Their blood is their most powerful trait. Outside of Alchemic World, their blood is needed to fuel the alchemic process. The total amount depends on the blood-to-philosopher-stone ratio of the blood itself. Because of this, they are the only ones who can perform alchemy outside of Alchemic World. Even then, they need to have a talent to be able to learn how to do so. Their blood also makes them immune to many physical illnesses such as the common cold and cancer. It is also potentially poisonous to normal humans, turning them mad or into monsters more often than not. For this reason, they do not donate their blood and only have transfusions within their own species when necessary.

Philosopher Stone Humans also age slower than normal humans starting between the ages of 14 and 16. Edward and Alphonse are believed to live around 400 years while their children will live around 200. For the third generation, it is calculated by whether their mother of father was a Philosopher Stone Human - 1/2 their lifespan for the father and 10x their lifespan for the mothers.

Notable Examples

 * Edward Elric
 * Alphonse Elric
 * Maggie Elric
 * Rose Stevens
 * Len Stevens
 * Samantha Stevens
 * Eiji Hino