Hayate no Gotoku! Chapter 125:What's the Thing That Will Make You Happy but You Don't Want to Buy for Yourself? Is It Hard to Find? (自分で買うのはイヤだけどもらうと一番嬉しいものはなんですか？見つけにくいものですか？,Jibun de kau no wa iyadakedo morauto ichiban ureshī mono wa nandesu ka? Mitsuke nikui monodesu ka??)
Chiharu Harukaze and Aika Kasumi make their first appearance in this chapter.
At the Sanzenin Mansion, Hayate asks Nagi if there was something she would like that would make her happy, to which she then tells him that she'd like a kind of drill that would activate a robot. This is a reference to the Core Drill that is used to power up the gunmen, Lagann in the series Gurren Lagann.