Lin Jia Yi is a spoiled princess and her father, who doesn't want to see his daughter continue this path decides to teach her a lesson - by disowning her! He kicked her out of his house because he "discovered" that she is an illegitimate child of his and has his best friend to take care of her and teach her how to live a fruitful life. She uses her skills and started her own business. In her path to become a contributor to the society, she comes to experience true love, the value of family and friends.
Chen Xi is a common delivery driver but with a good heart and wit. When he first encountered Lin Jia Yi he wants nothing to do with an inconsiderate and spoiled brat. But as she begins to live in his family he begins to fall in love with her. Things get confusing when his ex-girlfriend tries to get back to him and Lin Jia Yi's ex-boyfriend tries to win her back...
Zhu Qi Qi came from a poor family and lives with her single mother. She feels she hit the "jackpot" when her mom married LinJiaYi's father. Her attitude changed as she discovered the power of money. She is Huang Zai Yuan's girlfriend and due to his indecisiveness, she constantly fights with LinJiaYi over him. Will she realize her personality changed to worse due to money?
Huang Zai Yuan is a conflicted soul. He has always been under his father's control and he approached Lin Jia Yi under his dad's suggestion as well so his dad can take over Lin Jia Yi's company. He has a real down to earth girlfriend Zhu Qi Qi and he tries his best to date two girls at the same time. He might have fallen for Lin Jia Yi when she became disowned?
林佳一（李小璐 饰）从小养尊处优，过着优越的物质生活，因为家中变故由父亲林世渊独自一人带大，这也造成了林佳一做事情不顾后果的性格，为了挽救自己的女儿，林世渊狠心将其赶出家门，想要锻炼她自食其力的能力。
流落街头的林佳一离开自己父亲的庇护后，不知道自己能做什么，幸好被北京胡同里土生土长的快递员陈曦（张译 饰）所救，就这样林佳一住在了陈曦的家中，但是过惯了优越的物质生活的她忍受不了普通百姓的生活，她惹出了很多祸事。面对齐心协力共同度过难关的陈家人，林佳一心底的善良被激发出来。
陈曦对爱情和家庭的责任感深深的感染了林佳一，她决定靠劳动创造价值，两人也在相处中逐渐走到一起。但是就在这个时候林佳一前男友黄在远（李智楠 饰）想要挽回他跟林佳一的感情，林佳一的亲生妈妈也从美国衣锦还乡，并试图让林佳一重新过上不用劳动的生活，林佳一和陈曦的感情变得岌岌可危。最终林佳一克服重重困难，用自己的行动收获了自己的爱情！
