The Adjons the murderous group isn't what you think.
When the first elemental users came about everyone could use all elements in its purest forn, Earth, wind, fire and water. A man named Ren Adjon was the smartest human alive.
He created the very fundamentals of all elemental powers, teaching techniques and helping others to grow there powers, he had a thirst for knowledge and wanted to know everything. As you would assume he gained fame and riches but that didn't change him.
He made the decision to be a shadow leader of the country of Barton he controlled everything in the shadows, he made the calls that made the country grow and become prosperous.
One day he was improving on the fundamentals of all elements and discovered that they were only 2 primal incantations in elements.
One saying "iberat el" (which means liberate self) and "iberat veryon" (liberate everyone) because of his thirst for knowledge he was curious about self liberation and said the incantation not knowing what it would do.
Suddenly a bright blue light surrended him and he saw the raw energy that the elemental powers came from coming from every directiob towards him, then his eyes turned white as knowledge entered into his brain.
"Liberating myself means I take all of the elements from the human powers and make them my own but leave one for humans to use and that power shall no longer be in it's purest form of the element."
From that moment Ren gained the powers of all element users and left one for everyone else. This. Means that people now have one element to use which is randomly chosen from the 4 and the power is no longer in its purest form and will change over time to a sub ability, this causes new abilities to spawn but not as strong as the pure elements.
Ren felt the power he had inside of him, he grow taller and more muscular and had the gift of all the abilities of all elements.
For example he could heal with the earth which is a technique that takes years to learn and he could fly which no one has achieved yet.
Ren possessed a complete mastery of all elements, capable of utilizing every conceivable application and technique associated with them.
He knew he was all powerful now and decided to hide it.
Elemental abilities are not inherited but are randomly activated at birth due to a unique genetic code present in all humans. This genetic code, a remnant of the original elemental distribution, determines an individual's potential to manifest powers.
A desire for new and stronger powers caused and disturbing trend, human trafficking.
When Ren heard of it by the leader of the country he knew that he himself had to do something about it because he was the cause of this situation. He went stealthly to many homes saving people from slavery but the thinks he saw made him vexed with himself and the people doing this.
Woman and stolen children were raped to give birth to children and trained to death by wicked people. He wanted to kill everyone of them, so he did.
Violently ending there lives for the greater good. Ren hating what he had seen and wanting it to never happen again made a secret police which he was the head of and called them "The Adjons". Having this secret life he mastered his powers and trained diligently.
Ren wanting justice slowly became a dictator in the shadows, killing anybody who stood in his way and became heartless, he started to kill people with opposing ideas just because it's not his idea but no one knew it was him because at this time the secret police became assassins killing people in secret.
Ren putting on a face met a woman who he loved and had six boys.
These kids had the exact same powers as him, they were "Liberated"
When Ren realized this he taught them saying "we are the strongest people on earth we stand against the bullshit but no one absolutely no one can STOP US"
He trained them and taught them how to control and use there powers and more importantly how to KILL
When they became 12 he let them join "The Adjons" as the leaders.
To this day they are the leaders and are the ones who decided to keep Kenji and watch his progress