Qin

"fire"

- This defeat is the gateway to many victories. Qin is the cunning overseer of the Fire Nation military's technology. He is the Fire Nation's War Minister. Despite his many failures, his technological expertise keeps him a valuable member of the Fire Lord's cabinet.

History
The cunning and inventive Qin oversaw the creation of all the Fire Nation's war machines. Qin had been a Fire Nation emissary for years and had worked with the Mechanist to create destructive tanks and warships. He also had several secret weapons in the works in an effort to bring an end to the war. And now that he had possession of the Mechanist's war balloon, the Fire Nation could soon control the skies, as well as the land.

For several years, War Minister Qin had been developing the massive drill used to attack Ba Sing Se. After that technology's defeat, Qin had been working to make more war balloons as well as adapting the technology to create Fire Nation Airships. Despite being defeated twice by the Avatar, the War Minister was still a valuable part of the Fire Lord's cabinet due to the technological advancements he had brought to his country.

During the invasion at the Fire Nation capital, Qin was seen in the Fire Lord Ozai's bunker, where he came across Aang, Toph and Sokka. When threatened by them, he gave them the directions to Ozai's chambers, which turned out to be Azula's chambers. When the eclipse ended, the fruition of the Fire Nation's engineering of the war balloon was revealed as massive airships appeared and successfully bombed the invaders' submarines, preventing the majority of the strike force from escaping.

Qin's fate after the fall of Fire Lord Ozai is unknown.