Rail

レイル

A member of Lamia created less than 15 years ago. Rail is an explosives specialist with an outspoken hatred of his master and creator Huey. He hero-worships Christopher, who befriended him after a particularly traumatizing experiment. [Spoiler] Later in 1934, Rail leaves Huey's side after befriending Nice and joining Jacuzzi's gang. He is also revealed to be actually female. [/Spoiler] (Source: tvtropes.org)