Haku is Zabuza Momochi's right hand guy and greatest faithful follower. He has a greatly androgynous look, so much in order that when Naruto Uzumaki first meets Haku he results mistaking him for a girl. Before he started doing work for Zabuza, Haku lived as an orphan. His dad killed his mother while it was discovered that she got a genetic strength, and Haku after that killed him. After wandering from place to place for a time he was found by Zabuza. He recognized Haku's capabilities and decided to take him in as an instrument. For that reason, Haku results in being unquestioningly protecting of and devoted to Zabuza, and only by being valuable does he find a factor in life. He undoubtedly grants his life in his mission to be helpful to Zabuza, turning into a human guard to protect his teacher from Kakashi Hatake's Lightning Blade. Haku's genetic inheritance, Hyōton "Ice Release", enables him to mix wind and water elements to produce ice. He routinely uses this ability to surround an rival with ice mirrors that he can freely merge with and instantly flow between. He then bombards them with needles, and with his superb accuracy he can strike pressure areas to put opponents in a death-like condition. This reflects his pacifist dynamics; even being a ninja and Zabuza's tool of battle, Haku dislikes fighting and does all that he can to subdue opponents without actually killing them.Haku is resurrected by Kabuto later on in the series to fight in the Shinobi Global War. His words actor in the Japanese anime is Mayumi Asano, and his English voice actor is Susan Dalian. Mona Marshall voiced Haku in form of a child.