After graduating in horticulture, Sae-eun works as a plant curator at a crowded theme park in Gyeonggi, but soon grows weary of the suffocating city life. On the very day her stagnant seven-year relationship ends, she receives an offer to work at Yeomiji Botanical Garden in Jeju—and leaves without hesitation. Imagining Jeju as a romantic paradise, she soon discovers island life is harsh for someone used to the city. Seeking belonging, she finds Moseulpo Dabang, a hub for young migrants, where she unexpectedly reunites with Bong-min—whom she met a decade earlier as a tourist. Now training in wooden architecture, Bong-min struggles with unstable work, often reduced to day labor. Their reunion rekindles old feelings, yet when his job ends and he returns to Jeju City, they agree to remain only supportive friends, knowing that adding another’s burden is too heavy. As Yeomiji’s Spring Flower Festival approaches, Sae-eun reflects on her life while planting diverse species side by side. One evening, riding her scooter into the twilight, she finds Bong-min waiting—wearing an expression she cannot quite read…

From Fantasy Island to a fragile new life— can we truly become each other’s refuge? The Weather on the Other Side follows the reunion and love of two young migrants who settle in Jeju. Sae-eun, a weary plant caretaker, and Bong-min, a would-be carpenter, cross paths again after ten years. Amid unfamiliar landscapes and fragile lives, they come to see each other as both threat and solace. Set against real spaces like Mosulpo Café and the Yeomiji Botanical Garden, this tender yet chilling romance reveals that love means becoming “home” for one another in a foreign land.