An-Lei is a 35 year-old lady working in a skincare company as a supervisor. She is beautiful and hardworking but still single. She believes that everything will change this year because her ex-boyfriend promised to marry her if they are both single at the age of 35. One day her ex-boyfriend calls and tells her that he decides to settle down. An-Lei is excited about this and prepares to get married. At the same time, everyone in her company assumes that she is the right person to be the future general manager. However, things do not turn out as she thought. It is this moment that she meets Cheng-Yu, who is also facing the same situation as her. What will happen between An-Lei and Cheng-Yu?
這年，她相信一切會改變，因為她從未忘記某次喝醉酒後和前男友的約定，如果35歲我們都單身那就結婚吧! 正好此時前男友來通電話，表示他想回國穩定過生活，因為有這麼一個女生讓他想照顧。安蕾樂極了，準備好一切等著前男友的到來。同時，大家紛紛認為由安蕾接下公司目前總經理的空缺這位置是再適合不過，安蕾自己也認為，這位子就是我的了! 但未必事事能如願，原本這些安蕾的「以為」全部撲了空，倒楣到接近崩潰的安蕾遇到了來台北追愛的黃正宇，意外得知正宇同是天涯淪落人，兩人又將擦出什麼火花呢？