Sengoku is self conscious and insecure of his body type and weight, often wearing several layers of clothing under his school uniform in order to appear a healthy weight. This and his unusually high voice makes him appear feminine. Sengoku is shy and pretty easily embarrassed. He's also very easily startled, and hates anything to do with horror and bugs especially. He's a bright young man that ranks top of his classes, and enjoys reading. Not overtly expressive except when angry or irritated.