蘭係我老婆嘅繼女。一直都好似自己個女咁疼愛佢,但係今日終於帶男朋友返屋企。咁樣,原來佢已經係咁大個嘅年紀喇。雖然有啲寂寞,但係如果蘭開心就好。做老豆嘅,點會做埋阻礙佢哋戀情嘅嘢呢…咁諗住嘅時候,喺浴室俾蘭遞毛巾嘅時候,突然間有種黑黑嘅感情喺我心裡萌芽。喺個唔知係邊個嘅後生仔之前,我要保護蘭,唔俾佢嘅處女膜俾人攞走…!