Luna

Age: 16 Height: 164 cm Silver-haired girl from Arselia born into poverty who became a vicious killer in her fight for survival and was consequently recruited into the Guild of Darkness, an organization of professional assassins, where she became famous as The Headhunter. Luna is often lithe, and quiet like a wild cat, in a hostile environment. (Source: I Got a Cheat Ability in a Different World Wiki)