Seishirou Klaus

As the esteemed head butler of the Sanzen'in family, Klaus maintains a detached demeanor, often absent on business. He has a strong aversion to alcohol, tobacco, and women, finding solace instead in automobiles and motorcycles. Klaus harbors deep distrust toward Hayate, particularly as he was tasked with finding a suitable replacement for Himegami. He frequently challenges Hayate, setting conditions where failure results in his dismissal. Occasionally appearing every few chapters, he reveals his feelings about being overlooked.