Along with his young son, Ji-ho, Woo-jin misses his wife Soo-a, who died after promising to return a year later with the rainy season. Miraculously, they reunite with Soo-a when the rainy season comes around, but she has no memory of her husband and son whom she dearly loved.
Baseball player Jung-gu and movie star Nam-mi are a celebrity couple who are blissfully happy in their careers and marriage. One day, a girl named Dong-ju shows up and the couple's lives are instantly destroyed. Seven years later, as Dong-ju gets involved in the death of a middle-school girl, Jung-gu and Nam-mi decide to fight a battle they have no chance of winning.
Mi-sol, who has the XP disease, cannot be exposed to sunlight due to her medical condition. She always stays home in order to avoid sunlight, and finds joy in singing. One day, Mi-sol’s life shifts as she falls in love with a boy outside of her window, Min-jun, who runs a fruit truck in the neighborhood. Despite the great obstacle of her disease, they manage to grow their romance and dream together of their future. Min-jun’s support for Mi-sol’s dream helps her work up the courage to sing for a bigger audience.
An aspiring songwriter who ekes out a living by composing music for commercials, can no longer bear the many compromises that line of work demands and decides one day that enough is enough. As he reminisces about his college years, he leaves the city for his hometown.
