林家父母离世后，大哥林一江独自照顾弟弟妹妹。但三弟十三岁时意外走失至今下落不明，这让林一江心生愧疚，这些年一直耿耿于怀。不料若干年后林一江与改名为薛水的三弟意外重逢，林家这才圆满，林一江非常欣慰。林一江将薛水带回家里住，二弟和四妹却对这个失散多年的亲人颇有微词。林家的邻居是个年轻漂亮的女孩开心，她经营着一家花店，花店生意惨淡，林一江常过去帮忙。相处久了，林一江对开心心生好感。然而开心却跟薛水情投意合，林一江为了成全薛水黯然退出。然而相爱容易相处难，开心渐渐发现与薛水性格不合，薛水反倒是和开心单纯直率的妹妹美丽相处得更加轻松自然。开心这时才意识到薛水并不适合自己，林一江才是值得托付终身的合适人选。最终开心和林一江走到一起。然而就在两人甜蜜的爱情刚刚开始时，林一江当年远走他乡的挚爱碧芬突然返回香港，如何抉择让林一江陷入困惑之中…

After the Lin family's parents passed away, the eldest brother Lin Yijiang took care of his younger siblings alone. But the third brother accidentally disappeared when he was thirteen years old, and his whereabouts are still unknown. This made Lin Yijiang feel guilty, and he has been brooding over these years. Unexpectedly, a few years later, Lin Yijiang unexpectedly reunited with his third brother who was renamed Xue Shui. The Lin family was now complete, and Lin Yijiang was very pleased. Lin Yijiang brought Xue Shui home to live in, but the second brother and fourth sister complained about this long-lost relative. The neighbor of Lin's family is a young and beautiful girl, Kaixin, who runs a flower shop. The business of the flower shop is bleak, and Lin Yijiang often goes to help. After getting along for a long time, Lin Yijiang has a good impression of Kaixin. However, Kaixin and Xue Shui fell in love with each other, and Lin Yijiang sadly withdrew in order to complete Xue Shui. However, falling in love is easy and getting along is difficult. Kaixin gradually finds that he has a personality disagreement with Xue Shui. Xue Shui gets along with Kaixin's innocent and straightforward sister Meimei more easily and naturally. It was only then that Kaixin realized that Xue Shui was not suitable for him, and Lin Yijiang was the right person worthy of entrusting him for life. In the end, I was happy and Lin Yijiang came together. However, just at the beginning of the sweet love between the two, Lin Yijiang's beloved Bifen, who had gone away from home, suddenly returned to Hong Kong. How to make Lin Yijiang was confused..