-My saviors who came to spoil me!

Summer Guys, a worn-out cocktail bar next to Jeju Beach's ultra-luxury resort.

President and the only bartender, Oh Jin-dal-lae, is still in business, but is on the verge of collapse.

On a hot summer day when the sun is burning, three suspicious men come to her.

A noble, cold city man Sun Woo-chan, a pure love, six pack Park Kwang-bok , and Casanova con artist Ma Tae-oh.

They become "Summer Guys," a handsome bartender corps, in harmony to save Summer Guys.

Three men and a woman. And a cocktail.

Where there is alcohol and youth, there is no men's and women's heat governor?

Jin-dal-lae, surrounded by three flirting men, falls into happy agony...….

But they each had a different plan!

What is the real reason they came to Summer Guys? Why is it helping Jin-dal-lae,?

And, who is the man of her destiny!?