Mr. Cow, Mr. Cow! Yes? What is it, Mr. Frog?.Hayate tries to motivate Nagi to go to school finally, and offers to take her to and from school everyday from now on. Nagi reluctantly agrees and goes to school for the day, but when she comes back it turns out she forgot her notebook at school. Hayate offers to go to school late at night to bring it back and at the school gate he runs into the school's teacher, Yukiji, he met earlier, and introduce by three girls known as the Hakuou Three Amiga: Izumi Segawa, Miki Hanabishi, and Risa Asakaze. Hayate goes into the school's old building while Hinagiku comes looking for him. Hayate saves Hinagiku being chased by a haunted doll, and the two of them moves on to find Nagi's notebook. While Isumi and her butlers went to exorcise the real evil spirits, Hayate came back to Nagi safely with her notebook, and wonders about a school being a nice place.