He has a distinct streak of pure white hair right in the center of his bangs, while the rest is black with only a few stray grays. His hair is long enough to spill out from under his green eboshi cap. He tucks his side hair behind his ears. He has dark eyes with a gentle upward slant, which often well up with tears when he gets homesick. He is deeply human, extremely compassionate, and possesses a charming personality that earns him the love of others. He is serious and possesses a strong sense of responsibility, striving to fulfill his assigned duties rather than indulging his own whims. He is sincere and an extraordinary hard worker. However, even Nakamaro cannot win against homesickness; he occasionally suffers from loss of appetite, insomnia, and headaches. He speaks politely using formal language, referring to himself with "I" (polite). However, his speech becomes slightly less formal when he is overwhelmed by homesickness.