第 7 集: 瑪麗試圖找出初音的弱點以懲罰雄二，但和樹發現初音生病並介入照顧她。
2006年8月20日 播出
7
After yet another pervert attack by Yuuji in the morning with some help by Hatsune, Marie decides she will find out Hatsune's weakness so that she will not be able to stop her from punishing her brother. But it seems that Hatsune doesn't have a weakness. Later, Kazuki finds out that Hatsune has a fever and collapsed. Kazuki thinks it is because she overworked herself in taking care of her and the household, so she decides to take care of Hatsune and the household so that her sister can get well and do what ever would make her happy. (Source: Wikipedia)
集數
- 第 3 集 · 悠二與瑪麗開始上學，而和樹對悠二受到女生歡迎感到嫉妒。
- 第 4 集 · Nina追趕Marie，造成困擾，直到Yuuji幫助她理解
- 第 5 集 · 當千早與祐二關係親近時，和樹的嫉妒心爆發，威脅到他們的友誼。
- 第 6 集 · 千早試圖在 Kazuki 和 Yuuji 分手後促成兩人和解
- 第 7 集 · 瑪麗試圖找出初音的弱點以懲罰雄二，但和樹發現初音生病並介入照顧她。
- 第 8 集 · Kazuki打破姐姐的游泳紀錄，引發Hatsune的挑戰與心理戰。
- 第 9 集 · 得知Kazuki的過去戀人後，Yuuji心生嫉妒
- 第 10 集 · 老師計畫海灘之旅，而和樹對祐二雙標對待
- 第 11 集 · 眾人參加祭典，期間發生涉及Yuuji、Kazuki及其老師的事件。