Birthday: November 10 Katsura Yukiji is the 28-year-old sister of Hinagiku. She is a world history teacher at Haku� Academy and doubles as a 24-hour gate guard. She refuses to let Hayate enter the school when they first meet because she is afraid that letting unauthorized personnel on campus will result in a salary deduction for her. Her attitude softens after Hayate first saves her from falling off the clock tower, but she still almost causes Hayate to be rejected from Haku� by unnecessarily making him anxious during his entrance exam. She repays Hayate by telling everyone in her class on Hayate's first day that he is a super cool person. She has a group of underachieving students (Izumi, Miki, and Risa) who hang out with her a lot. She lives on the Haku� campus; she tells Hayate that she does this so that she can save rent money and use that money to buy alcohol instead. It is a recurring gag that she will do anything for money, going as far as to allow an evil spirit to possess her because it told her it would give her a million yen. When Makimura Shiori is sent to teach at Haku�, Yukiji is demoted to sub-homeroom teacher. She later regains her position as homeroom teacher when Makimura is promoted to a higher position. In the extras of volume four of the manga, the author writes that before starting the Hayate no Gotoku! manga, he had created a one-shot manga where the story is about a female high-school student and her little sister trying to pay back a 80 million Yen debt, then writes that these characters are, in fact, Yukiji and Hinagiku.