Bomi is 12 years old. She wants her own room so badly. Her sister, Eonju, whom she shares the room with keeps sneaking a look at her diary. She studied really hard to get first place as her mom promised to get her own room if she did but her mom keeps denying the promise. So Bomi decides to marry her sister off! She finds out that the manager of a construction company like her sister and does her best to help him. The manager ends up winning her heart and proposes to Eonju. But she refuses his proposal. Bomi gets curious and tries to find out why she doesn't want to get married.
Kwang-soo married Lami, a former nightclub hostess working under his mother Sera. Living together, Sera and Lami are in-laws, friends and somehow completely strangers. While living with huge credit card debts, they are asked by Kwang-soo to retrieve a diamond worth five million dollars that Kwang-soo’s friend choked on and buried with him. Kwang-soo was supposed to steal the diamond and give it to his boss but he and his friend stole it and ran away. His boss found out and chased them at which point Kwang-soo’s friend accidentally swallowed and choked on the diamond. The boss will stop at nothing to find out where the diamond is by doing everything to get Kwang-soo out of jail after he turned himself in to the police. Now, Sera and Lami are searching for the diamond themselves with the gang boss pressuring them with everything he’s got.
