Senku Ishigami is a quintessential INTP, driven by a dominant Introverted Thinking (Ti). His internal framework is a vast, logical system of scientific principles. He judges all information and solves every problem through this lens, prioritizing internal consistency and efficiency over external values. His decision-making is purely analytical; he calculates the ten billion percent probability of success before acting and dismisses emotional or traditional reasoning if it contradicts his logic. This Ti dominance makes him appear cold, blunt, and socially awkward, as he often fails to consider the emotional impact of his words.
His auxiliary Extroverted Intuition (Ne) is the engine of his genius. It allows him to see countless possibilities, connections, and applications for raw materials in the Stone World. He doesn’t just see a tree; he sees potential for carbon, sulfuric acid, and revival fluid. This Ne-Ti loop enables his rapid, improvisational inventions. His tertiary Introverted Sensing (Si) provides a reliable database of scientific facts, formulas, and past experiments he can recall with perfect accuracy, serving as the stable foundation for his Ne’s explorations.
His inferior Extroverted Feeling (Fe) is his primary area of growth. Initially, he views people as ‘resources’ or ‘labor force’ for his scientific goals. However, as the story progresses, he learns to value his friends, developing a protective, albeit still logical, loyalty. He creates the Kingdom of Science not just as a project, but as a community, showing his Fe developing in service of his Ti-Ne goals. His growth lies in integrating this understanding of group harmony and emotional motivation to lead more effectively, without compromising his core rational self.