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Dal Lae thinks she recognizes Chan from childhood and embraces him. However, Ah Ran sees her and slaps her across her face. Chan's identity gets revealed, but the guys still accept him. Meanwhile, the Lady's Day event over at Partner's Resort attracts all of Summer Guy's patrons until a famous singer shows up at their bar for a drink.

A Ran throws a pool party for her birthday. She gets Dal Lae to be the bartender at the party for 10,000 dollars. Although Chan tries to dissuade her, Dal Lae jumps at the chance. At the party, A Ran tries to intimidate her and later, Dal Lae falls into the pool nearly drowning.

It's Gwang Bok's birthday, and Dal Lae fumbles to do something for him. However, Chan comes up with a plan to surprise him with a memorable birthday meal and cake. Meanwhile, Dal Lae thinks she's found the guy she's been waiting for, and Tae Oh becomes sick.

It’s Gwang Bok’s birthday. While others are gone to grab some food, Gwang Bok decides to confess his feelings for Dal Lae. Later that day at the bar, Gwang Bok is handed an envelope with a cheque by Lady Cho. Meanwhile, knowing that Chan is not related to Sunwoo family, he is told to stay away from A Ran. Chan walks away imperturbably, and A Ran follows him.

Guys at Summer Guys realize that Jin Dal Lae has gone to see a loan shark for some reason. Fortunately, it turns out she was there of her own accord. Meanwhile, Tae Oh expresses his feelings toward someone for the very first time. It seems like Tae Oh will finally be able to be at peace with himself until he realizes that his secrets have been exposed.

After searching for Tae Oh for hours, Sunwoo Chan eventually finds him at a hospital. Without promising anything, Chan leaves him after a short conversation. While the guys at the bar are busy preparing for the competition, an unexpected guest enters Summer Guys. No matter what the circumstances are, the guys at the bar must win to keep what’s important to them.

On the day of the competition, the guys at the bar feel nervous. As they walk onto the stage, their memories with others at Summer Guys come flooding back. After the competition, things settle in, and the guys wish each other well in their future endeavors. Some might leave and some might stay. Whatever the choice is, everyone will have a place in their heart for Summer Guys.