Good Luck!

The three best friends, Mu Chul, Dae Sik, and Gyu Tae, grew up together but now face different challenges.

Already struggling financially, Dae Sik finds out that his rent and security deposit will go up again.

Dae Sik is on the brink of bankruptcy, and Mi Ja sees a message from a woman named Jang Mi on Mu Chul's phone.

Mi Jin finds out about the security deposit increase, and Mu Chul gives Dae Sik a lottery ticket.

Dae Sik decides to leave Daewoon Building and Mu Chul's house, and Mu Chul suddenly can't reach Mr. Jang.

Seok Jin tells the family about Farm to Market, and Dae Sik has a strange dream where he sees his late mother.

Mi Ja sees another text message from Jang Mi, and Dae Sik remembers the lottery ticket Mu Chul gave him.

Hye Sook is devastated, and Dae Sik sneaks into Mu Chul's room to find the lottery ticket.

Mi Ja follows Jang Mi, Ah Jin lends Tae Ha money, and Hye Sook gives up on the lottery ticket.

Mi Jin quits her job, Mu Chul can't reach Mr. Jang, and Dae Sik hears about the lost lottery ticket.

Dae Sik and Hye Sook find the winning lottery ticket while Mu Chul grows anxious that he can't reach Mr. Jang.

Dae Sik and Hye Sook fail to claim the prize money, and Gyu Tae's son, Min Yong, suddenly collapses.

Gyu Tae goes to Mu Chul to borrow money for his son's surgery, and Mu Chul hears that Mr. Jang showed up.

Mu Chul is accused of being an accomplice in a fraud and learns his lottery ticket has the winning numbers.

Mu Chul finds himself in a financial crisis, and Dae Sik goes to the bank to cash in the lottery ticket.

Mu Chul's family now has to stay at a motel, while Dae Sik feels confident sitting on a fat bank account.

Dae Sik is frustrated that he can't tell Gyu Tae about the lottery, while Mu Chul plans to leave the country.