第 20 集: 林·雷吉斯特神父的四月愚人節惡作劇，涉及伊須美與春
Father Linn Regioster suddenly appears before Hayate and announces his decision to rest in peace. However, he claims that to finally leave the Earth, he must rid himself of his one lingering regret by flirting with a maid. Since Maria cannot see Linn and because Hayate has no intention of letting Linn take over his body, Isumi resolves to learn how to be like a maid herself. After Nagi coaxes some advice out of Wataru under dubious circumstances, Sakuya introduces her new maid Haru to teach Isumi the spirit of a maid. Much to both Hayate and Isumi's chagrin, however, the entire setup was an April Fools' Day joke by Linn. Later, Haru is revealed to be Chiharu Harukaze the secretary of Hakuou Academy who doesn't want her secret expose to the others. (Source: Wikipedia)
集數
- 第 16 集 · 步與凪在殺手追殺下逃脫，颯與銀花追至熱海
- 第 17 集 · 凪與瑪雅尋找飛船，而阿由面臨醫療緊急狀況
- 第 18 集 · 八田練習送白節日禮物給步，卻不小心送給了瑪莉亞
- 第 19 集 · 凪結束封閉生活，颯未能讓咲夜開心
- 第 20 集 · 林·雷吉斯特神父的四月愚人節惡作劇，涉及伊須美與春
- 第 21 集 · Nagi 回憶 Tama 在非洲被領養的經過，而 Tama 則與 Shiranui 一同逃離險境
- 第 22 集 · 八瀨在與凪和綾夢於橡果咖啡廳工作期間，收到瑪莉亞贈送的生日手錶。
- 第 23 集 · 在颯夜的派對前，凪小睡了一會兒，而遙和颯在表演，日向子則在尋找步。
- 第 24 集 · 在咲夜生日的煙火大會中，眾人尋找凪，而八太則回顧過往的戀情。