Kuromaku values precision and rationality. He is purposeful and serious, but he loses his temper quite easily: sometimes he breaks down on the "inappropriate" behavior of others, in his opinion. He is erudite. He has high intelligence, but lacks empathy. In his free time, he prefers to work alone, read, and watch documentaries. Fantasy is underdeveloped. Due to constant work, he sleeps poorly and does not get enough sleep, which causes severe irritability to the world around him.