Zed ( Kiba )

Zed is the main protagonist of the story. He possesses a powerful Spirit, Amir Gaoul, that has the power to end all the fighting. He was born at Calm, a city filled with machines, and then he travels to another world, Templer, where instead it is filled with nature. While in Calm, Zed has a somewhat unusual habit: breaking doors and gates. He claims that by doing this he "feels that he can go somewhere.

A young man who has a brave and a rebellious nature. He is 15-years old and originally from Calm, a land where no wind blows. He is shown to be a delinquent and a rebel at school. Because he has a tendency to break down doors and gates, he has been on the run from the police and his school teachers. It was shown that Zed once took on some older kids all by himself when he saw Noah was being bullied by them. Zed tends to be cold to others, and he speaks quite harshly at times even to people older than him, like Elder Jiko and Sebastian. Zed possesses a strong will, and openly defies things that are useless in his perspective. He would rather sacrifice something for the greater good, to save many lives and people who are important to him.

He is a good and loyal friend, and comforts Roya and Sagiri when they are in pain throughout the series.

He can be described as an impatient person and a hothead, and can sometimes be naive. His reckless behavior and personality can also be seen in his battles, where he charges and fights against an enemy Spirit on many occasions with only his Shard sword. He is shown to be adept at battle, and has defeated many powerful foes throughout the story. However, he does not fight and kill people without reason, with the exception if they are enemies. He dislikes bloodshed, and he desires to stop all the warring so no more innocent people can be killed by the greed for power.

At first, Zed wishes to become stronger, but as the story progresses, he doubts that only being strong is enough for him. He thinks only becoming stronger is somewhat lacking on its own, which contradicts his behavior earlier in the story where he vigorously searches for power.

Despite his behavior, Zed has been chosen by the strongest Key Spirit ever known, which is Amir Gaoul. What Zed and his Spirit, Amir Gaoul have in common, is that they are both rebellious by nature, and that they both possess great power. Zed wishes to end bloodshed, and Amir Gaoul seems to share his opinion, with the both of them working together to stop all the useless fighting.