Kallon is the main antagonist in the story, a highly manipulative and powerful figure who serves as both Tanner's coworker and boss within the corrupt government agency, FIA (Federal Imperial Authority). Despite appearing human, Kallon is actually a cyborg who underwent numerous surgeries decades ago, making him nearly entirely robotic internally while maintaining a flawless human appearance. This transformation allows him to exert significant control and influence over others without revealing his true nature.

Characteristics of Kallon:

1. Manipulative and Ruthless: Kallon is extremely skilled at manipulating situations and people to achieve his goals. He operates without a sense of morality, willing to eliminate anyone or anything that stands in the way of his vision for a single global ruler.

2. Ambitious: His ultimate goal is to establish himself as the worldwide ruler, believing that a single leader is necessary for global order. He sees himself as the ideal candidate for this role and will stop at nothing to achieve it.

3. Cyborg Abilities: Enhanced by his cyborg enhancements, Kallon possesses immense physical and intellectual capabilities. This makes him a formidable adversary, capable of outwitting and overpowering his enemies with ease.

4. Secretive: Kallon keeps his true nature hidden from most, maintaining a facade of a charismatic and authoritative leader within the FIA. His true motives and capabilities are known only to a select few, giving him an advantage in his pursuit of power.

5. Driven by Control: Control is paramount to Kallon. He seeks to eliminate any perceived threats to his authority, including individuals like Samuel Solace, whose condition and knowledge pose a potential risk to his plans.