Fenrich is a werewolf and loyal servant to Valvatorez, the main character of Disgaea 4: A Promise Unforgotten. Originally, Fenrich was assigned by a man named Minotrose to assassinate Valvatorez for a reward of 100,000,000 HL. Believing that Fenrich was his ally, Valvatorez put all his trust into Fenrich, who decided to go after Minotrose instead. Unfortunately, Fenrich's plan backfired and Minotrose took away his power, by sealing off the moonlight. Almost killed by silver bullets, he was saved by Valvatorez and vowed to be his servant.
His attitude towards his Valvatorez is that of a well intentioned worker praising his master whenever possible, even if the thing he is praising is something Fenrich sees as a flaw, and treats everyone else with indifference or outright hatred. He is cold and calculating, seeming to have a plan ready for anything that may happen.
