第 20 集: 八瀨與凪在卡拉OK包廂展開歌唱對決，爭奪八瀨的芳心。
It's a hot day in the Sanzenin mansion, Hayate is searching for an Ultimate attack, and Maria suggests looking in the Sanzen'in library for hints. They find a book "Sanzenin Secret Technique" that teaches the Sanzen'in secret ultimate attack that was used by Himegami. When Nagi is reading the instructions she read a lesson about being "lovey-dovey" but hides it from Hayate. After some training, Nagi finds out that Hayate is training for Hinagiku's sake and burns the book. Depressed, Nagi leaves the house at night where she meets Ayumu who challenges Nagi in a one-on-one match for Hayate in a karaoke box; jealous when Ayumu heard Hayate is now Nagi's butler. The result of Nagi's singing says 100%, which means she won. Ayumu tells Nagi that they will meet again in their next battle. Meanwhile, Hayate and Maria are still inside the karaoke box, with Maria singing her song. (Source: Wikipedia)
集數
- 第 16 集 · 八瀨面對春日野楓的管家，並利用獨特的換身技巧獲勝。
- 第 17 集 · Nagi 為了提升被退稿的漫畫投稿，尋求生活經驗與烹飪技巧。
- 第 18 集 · 學生們前往偏遠島嶼進行海灘課程，而八瀨在私人噴射機上深受暈機之苦。
- 第 19 集 · 渡邊尋求幫助以籌備咲的成年禮，其他人則對抗一隻被詛咒的蟑螂。
- 第 20 集 · 八瀨與凪在卡拉OK包廂展開歌唱對決，爭奪八瀨的芳心。
- 第 21 集 · Nagi的後院遊樂園與Robot Eight的復仇企圖
- 第 22 集 · Nagi和Hayate的釣魚之旅以混亂和煙火告終
- 第 23 集 · Shiori代課Yukiji的班級，Hayate阻止勒索企圖
- 第 24 集 · Hayate 在歸還 DVD 並處理聖帶失竊事件之際，應對詛咒吊墜的困擾。