Nobu

Nobu (ノブ Nobu) is a doctor extremely famous among pirates, known to cure almost all diseases and injuries of those who hired him in exchange for money, and while many have tried to hire him to this day he never showed interest. His origins are still to be known as he doesn't talk about his personal life to clients. Although some people think he's just hiding it, Nobu has no devil fruit or anything that makes him different from a regular doctor except for the vast knowledge and experience he adquire over the years. The War Doctor the epithet that he received from pirates to symbolize the times in which he allied some crews during fights treating them and fighting along, and duo to that his body is currently cover in scars.