"How so?" Caleb raised his eyebrows.
The white-haired teenager shrugged.
"Dunno... I'm just a grade 2... Scratch that. I'm already a grade 2 a 17 years old. However, I still lack sufficient knowledge about things."
'This bastard really wants to emphasize to his younger brother how amazing and what and of genius he was.' As a man who has stepped on society. Caleb still has some confidence in his ability to guess the surface thoughts of people. Not to mention, a teenager.`
It might not be as accurate as a psychologist or some mind-reader shit. At least, he won't be entirely wrong.
Suddenly, Caleb felt a familiar burning sensation in mind. His mouth widened with a hint of horror. 'Damn timing!'
"Excuse me!"
The white-haired teen was obviously startled.
"Eh? Little brother, where are you going?"
Caleb didn't answer. He immediately strode towards the bed, lied down on it in the most comfortable position he could find, and covered his damn aching head with a white pillow. Then he gritted his teeth as he prepared himself for what was about to come.
Thirdly, the role of the taboo fighters is to fight monsters that were called Taboo curses and fight Taboo criminals. A group of people that wields their power for their personal interest. Taboo curses, on the other hand, were animals infected with Taboo energy and went out of control.
Taboo energy is a kind of energy that, according to his memory, an energy abundant in the atmosphere. However, awakened have the ability to sense it. This energy can enhance the power of the body a little. The boost gets stronger and stronger with every grade upgrade of the person. But that's not all that. The main function of Taboo energy was far from that. It acts as fuel to the abilities of Taboo person just like how vehicles won't function without gasoline.
The higher the grade of the Taboo curses or Taboo fighter, the higher the quality and the more abundant their Taboo energy would be!
Fourthly, Caleb also got the knowledge on how to upgrade from grade 1 to grade 5. Beyond that, he didn't have an idea. The upgrade method from grade 1 to grade 5 is already taught to four-year-old age children and above. For grades 6 to grade 11, one would only be able to access them when you join Taboo Academy.
Lastly, Caleb finally knew the situation of the family. It turned out that he also had an older sister. Not to mention, she was a grade 6 Taboo fighter working as a teacher at one of the most prestigious Taboo academies!
'Neat!' Caleb didn't expect he would have such an extravagant background.
Just how powerful is a grade 6 Taboo fighter? At least Caleb has a good understanding because of his narcissistic brother, the white-haired guy, whose name was Gaddi. The bastard always tells his younger brother stories about legendary figures.
For this reason, Caleb knew the gap between grades and what they could do. For example, a grade 1 taboo fighter is equivalent to the strength of two adult men! Grade 2 can break stone walls with their punches and they have deadly abilities that separate them from the mundane masses. Grade 3 Taboo fighters are already impenetrable to rifles. However, they have to still be careful against armor-piercing bullets and snipers. As for grade 4, they are completely immune to thermal and weapons and can wreck thanks to their arm strength alone.
All of this is thanks to the strengthening effect of the taboo energy on the human body. When Calen first learned of this, he was determined to learn how they work thoroughly. That way, he would be able to become a Taboo fighter in another world and gain enough self-protection.
Of course, the premise is that the other world's rules won't conflict with it. Who knows if Taboo energy also exists in other worlds?