Mei Terumī

The is suggested to have only recently become the leader of Kirigakure. As Mizukage, her word holds sway over all political and military issues that present themselves regarding Kiri and its inhabitants. She is a young, beautiful woman, and is one of two known female Kage, with the other being Tsunade.

Appearance
The Fifth Mizukage is a beautiful woman who appears to be in her late twenties or very early thirties. Her hair, which not only falls down to just above her ankles but also has part of it tied upwards in what appears to be a topknot, is russet-red, and her eyes are jade green. It has covered her right eye in all of her appearances. She has been seen wearing webbing as an inner layer, with a blue garment covering it. Even so, she dresses rather provocatively, as much of her legs, upper torso and breasts can be seen in this outfit.

Personality
The Fifth Mizukage is a cheerful person who is almost always seen smiling. She can even issue death threats whilst still smiling. She also seems to be somewhat self-conscious when it comes to her love life, as shown when she misheard Ao say that she was "past marriageable age", and threatened to kill him for such an "insult". This seems to be a running gag, as she has made similar mistakes in mishearing Ao saying "engagements" when he said "arrangements", and "call you ambitious" for "called off", leading to yet another death threat.

Five Kage Summit arc
When the Mizukage was about to leave, her people cheered her on before she was then handed her headpiece by a village elder. When Chōjūrō showed a lack of confidence in his own skills, she cheered him up by smiling kindly and saying that she had chosen him for a reason. When her other bodyguard, Ao, scolded Chōjūrō, she somehow misheard what he was saying, believing that he had said "is going past her marriageable age". She moved next to him, still smiling, and told him to shut up or she would kill him.

When they later stopped at an inn, Chōjūrō complained about feeling feverish. The Mizukage expressed concern for him, and took his temperature by pressing her forehead to his, unknowingly embarrassing him. Ao reprimanded Chōjūrō for not being able to choose what they should eat. She reacted coldly when she mistook the word "arrangements" for "engagements" and to the phrase "engagements called off", implying that she had possibly been engaged to be married at one time and that it had possibly been called off.

When the Five Kage Summit began, the Fifth Mizukage placed her hat on the table. Raikage suspects her to be the most suspicious since they formed no alliance with any of the countries, but Akatsuki still formed in the village. She then admits to the fact that it is believed that the Fourth Mizukage was being controlled, much to the surprise of her escorts. Mifune later suggests that the Mizukage cannot be the leader of the alliance because Kirigakure is believed to be where Akatsuki was formed and that information may be leaked to them. She later sugests that killing Zetsu was unnecessary because they could have used him to gain information regarding the Akatsuki. She also states that she can't help but think that Danzo's power might be somehow connected to the manipulation of Yagura, the Fourth Mizukage, and that she'll fight if it comes down to it. She also smiles at and silently acknowledges Gaara's honesty and innocence after the latter rebukes the Tsuchikage. After Sasuke breaks into the meeting room to assassinate Danzo, she fires a glob of sludge with acid properties at Sasuke. Chōjūrō then (mentally) states that it is the Mizukage's Kekkei Genkai.

Trivia

 * She is currently the only active female Kage.
 * Both she and Tsunade, the only two known female Kage, are also the fifth Kage of their respective hidden villages.
 * She, along with Hashirama Senju and Madara Uchiha are the only three known Kage to possess a Kekkei Genkai. However, Tobirama Senju and the Raikage may also have Kekkei Genkai.

Quotes

 * "Sir ... I swear on my name as Mizukage that I will fulfil my duty."
 * (To Chōjūrō) "Have faith in yourself. You're strong."
 * (To Ao) "Shut up or I'll kill you."
 * (To Ao) "The Fourth Mizukage's nightmare is long over ... quit talking about the old days."
 * (When preparing to engage Sasuke in battle) "Sigh... Such a good-looking man... What a waste."