He is shown to be a calm and collected person and prefers logical thinking over emotional actions, to the degree one of his catchphrases is a flat, atonal "I do not comprehend." However, certain acts of extreme emotional cost will affect him, and his emotional side grows with his interactions with Lupa, Fred and you.

Initially unable to comprehend the notion of "honor" and other feelings (and, ironically, a certain smugness in being the last of the Embryon to remain acting emotionlessly for the