|“||As head of the family, I've tried to rectify the disparities that have existed for so long. Sadly, it was not to be.||„|
|~ Juugo Kannagi, in regards to the Kannagi Family's treatment of the Fuga Clan|
He is voiced by Masaki Terasoma in the Japanese version of the anime and R. Bruce Elliot in the English version.
Juugo is a tall, elderly man who appears to be in his mid-to-late fifties. He has brown eyes and grey hair of multiple shades. His outfit consists of a typical man's kimono, which is light and dark brown in colour. He also wears tabi on his feet.
As the head of the Kannagi family, Jūgo is responsible for directing the other members of the head family and branch families as well as the Fūga Clan.Therefore, compared to most members of the family, Juugo is very calm and lenient. He is often portrayed calmly sipping tea. He treats all of the younger members of the family nicely, which is often opposite to how their actual parents treat them. Despite this, Juugo is also rather strict with his own daughter Ayano, strongly disapproving of her rebellious nature and constant disobedience.
Despite being the head of the family, Juugo is easily one of the most humble members and in fact always disliked the family's tendency to look down on people who don't use En-Jutsu. Contrary to the typical Kannagi doctrine that places merit solely on strength in using fire, Juugo has been trying to stop discrimination against not only the Fūga Clan but the users of other jutsus as well, with little to no success. He also regrets not being able to stop Kazuma's expulsion from the family.
Juugo is also a very practical man, willingly agreeing to Kazuma's demands for money in spite of how selfish they are as well as attempting to get him and Ayano together, as he believes Kazuma's great power is essential to the survival of the family. All in all, he serves as a sharp contrast to his cousin Genma, who disowned Kazuma when he failed him one too many times and is just as arrogant as a typical Kannagi.
Prior to the show, it could be assumed Jūgo was a master at En-Jutsu because of his current status as the head of the Kannagi family. He wields the Purple Flame of Purification and was considered to be the strongest member of the family, though he gave up the title to Genma after losing his leg. It is implied that he wielded Enraiha before passing it to Ayano.