In order to seek revenge against the head of the parent association, who destroyed her family, a Chinese teacher in a private school approaches the woman's high school son. However, they fall into an irresistible forbidden love.

他是一名高三資優生，她則是他最愛捉弄的老師，兩人互有好感、相互吸引。而當他們暗藏的情愫日漸升溫，直至悄然失控，道德界線也隨之模糊。故事講述高中校園裡國文老師與學生之間發生的師生戀最終導致的砍殺事件，藉由師生戀議題包裝校園中權勢霸凌與人際之間各種感情等議題。