Gin Furyūmonji

Gin Furyūmonji (銀不立文字, Furyuumonji Gin) is the former Hunter-nin captain of Kirigakure aswell as the former teacher of current captain Arui Gobetsu. He's feared among the world as the Fox of Decimation (虐殺のキツネ, Gyakusatsu no Kitsune) due the massacre he wreaked before his defection. He joined up with one of the mist's most illustrious missing-nin, Kaguya Gobetsu, due her devastating power and the promises she made to him. He has also become one of the most prominent targets for the nowadays hunter-nin, since he possesses immense knowledge of the village defenses and secrets.

He's also feared as the Spiritual Massacrer (霊的殺し, Reiteki Goroshi) as he also murdered out his clan, whom were the founders of the Hunter-nin and thus the reason for him becoming captain and having a miserable life. The fact that he was able to kill all the members of his clan by himself is already a sign of his awesome powers, but the fact that he was able to destroy a large part of the village practically on his own afterwards is an even greater sign.