Tachihara is a slightly imposing young man with short, spiky hair dyed rust red and amber eyes. He wears a plaster on the bridge of his nose. His normal outfit consists of a long-sleeved, baggy white V-neck shirt with the border being black and the left sleeve rolled up so it isn't visible. Underneath a jacket, he wears a gun strap for his dual guns. On the surface, Tachihara is an arrogant, impulsive, rash individual, very willing to solve problems through sheer brute force. He follows orders.