Pim, a sharp and confident sales head at a top shoe company, has life figured out—except for love. At 30, her parents pressure her to settle down. Her best friend Pon has always been by her side, the steady presence everyone assumes is her perfect match. But to Pim, Pon is just a friend—reliable, safe, and not the type to sweep her off her feet.

One day, they make a playful bet: whoever doesn’t get married within a year must give the other a wedding gift. Pim dives into dating, eager to win, while Pon drags his feet—because his heart already belongs to someone: her.

As each of their new relationships fall apart, they continue to confide in one another. But when Pon can't hide his feelings anymore, he accepts a transfer out of town, choosing distance over heartbreak.

Will Pon ever tell Pim how he truly feels? Will Pim realize love has been beside her all along? Or are they meant to remain just friends, never more?