Hauser is one of the two second in rank officers of the order of the Holy Knights of the Kingdom of Lyons, belonging to the order of the first generation Holy Knights, a Platinum Knight along with Gilthunder.
Hauser's past has not been exploited as such. Just as every other Holy Knight of the Kingdom of Lyons, he believed Seven Deadly Sins to have tried to overthrow the kingdom and believe them to be criminals. However, the incidents that happened during the Byzel festival changed his mind about the Seven Deadly Sins, especially Diane.
Hauser is an antagonist created by Suzuki Nakaba for the series the Seven Deadly Sins. As of yet, no particular inspirations are known about Hauser's character.
Hauser first appeared in the Byzel fight festival arc, wearing a black shirt and open flap jacket, a belt around his waist and striped pants. He has long and well kept hair and has a slightly average build. In the same arc, Hauser later changes his attire to an armor, exposed in the thigh area with steel boots that make him look like he's wearing a maiden's frock, with bulged out shoulder plates and layered flaps waist down.
Hauser has a pleasent going and friendly personality, despite his rank and power among the Holy Knights.
Hauser, the same as the Seven Deadly Sins participated in the Byzel fight festival, the winner of which would recieve Diane's sacred treasure Gideon. Hauser's first opponent in the tournament turned out to be Taizoo, who Hauser defeated with ease. He went on to fight Diane. In a contest that pushed him to the limit, he enveloped the top of the Great Byzel rock with a tornado, lifting Diane (who then had been shrunken down to a normal human's size) into the air inside the tornado. However Diane comes back, using a move that turned her skin hard and dark, she defeated Hauser in one shot.