高中女生夏澄(深田恭子)，愛慕單身英俊的老師藤堂直(渡部篤郎)，同學清一(池內博之)卻對夏澄一往情深。而當藤堂克制不住自己的感情，與夏澄淡淡的一吻之後，卻忽然不知去向。五年後，夏澄的姊姊朋子(和久井映見)將男友帶回家時，夏澄赫然發現，姊姊的未婚夫竟是朝思暮想的初戀情人藤堂。故事就圍繞這四個人執著的愛開始展開…。 就如同不瞭解生命的意義，卻站在第一線救人的醫生一般；不瞭解愛的真諦，卻每天在玩戀愛遊戲的現代人，令人感到悲哀。和久井映見在本劇中飾演的角色朋子，就是這樣一個不懂愛卻又渴望愛的孤獨人物，乍看之下雖是令人討厭的壞女孩，但在內心深處卻是令人同情的。「我經常扮演乖乖女的角色(東京仙侶奇緣等)，接下這個與過去完全不同的角色，是一個嶄新的嘗試，雖然心中有些不安，但我想擴展更寬廣的戲路。」如和久井映見所言，她將城府深、工於心計的朋子這個角色，發揮的淋漓盡致...Kasumi is shocked to discover that her older sister's fiance is the man she first fell in love with five years ago in high school. At the time, he was her high school teacher and ultimately quit his job racked with guilt over their relationship. Kasumi was deeply hurt and struggled for a long time to overcome her sadness. Now the two of them must come to terms with their secret past before the ones they care about in the present are hurt.
