世界上最好的爱情，莫过于年少时的互相喜欢，最遗憾的，莫过于错过与说不出口的爱。

程又青是一位大龄女青年，三十岁那天，她还是孤单的一个人，但是年龄不断提醒着，一封写着「欢迎光临初老的世界」的祝福。让他跟李大仁打赌。李大仁航空公司的地勤督导，他们两从高中开始就是好朋友。虽然看似不合，但又互相欣赏。

命运就是如此的令人捉摸不定，他曾经给她写了一首歌，但她却不明白其中含义，直到很久以后，她才知道，歌词中的我可能不会爱你，其实是我爱你。

人生就是这样，因为太熟悉了，互相爱但有怕一旦说出来，就会失去现在的关系。许多不敢说出口，令很多爱情走向了遗憾，但是命运总会让相爱的两个人在一起。让我们跟随影片，一起感受他们的爱情故事。

The best love in the world is to like each other when we were young, and the most regrettable thing is to miss and tell each other Unspoken love.

Cheng Youqing is an older young woman, at the age of thirty, she was still alone A person, but the age is constantly reminded, a letter of blessing that reads "Welcome to the world of early age". Let him make a bet with Li Daren. The ground handling supervisor of Li Daren Airlines, the two of them have been good friends since high school. Although they seem to be at odds, they appreciate each other.

Fate is so unpredictable, he once wrote her a The song, but she didn't understand its meaning. She didn't know until a long time later that I might not love you in the lyrics, but in fact I love you.

Life is like this, because we are too familiar, love each other but are afraid that once we say If you come out, you will lose your current relationship. Many dare not speak out, which makes many loves go to regret, but fate will always bring two people who love each other together. Let us follow the film and feel their love story together.