In the year 2550, Dr. Jonathan Reed, the world's foremost microbiologist, and creator of revolutionary cures, is known as the "God of Life" by the people of Earth. However, upon his demise, he awakens as a baby in a fantastical realm known as Antharia. In this world, humans can become Tamers and contract different races to grow stronger. Will Jonathan Reed be able to continue his research and fulfill his dreams of deciphering the mystery that is Life?
Sienna continued, "That is why you will find machines to measure your mana, body, and soul in all buildings that belong to the Beast Tamer's League. It is an official organisation created by the Federation to facilitate Beast Tamers' needs.
"Coming back to the trials, there are two types, but we won't dwell too much on that right now. We're here so that you can practise the Zaldrīzes Art that I've chosen for you. It is a very basic Zaldrīzes Art, but it is extremely comprehensive. In fact, it is said to be the ancestor of almost all Zaldrīzes Arts in existence.
"Its name is Iron Body Art. I know it sounds simple, but that's because it is very simple. I won't go into the details of how it works. You just need to know that it will be extremely painful, which is also why you've been increasing your pain tolerance for the past year.
"The overall physique is measured in Zenos. Right now, you three are somewhere between 0.70zn and 0.80zn."