Yong-jun works part-time at his parents' lunch box house. Yeo-reum lives only to support for hearing-imparied swimmer sister. One day, Yong-jun meets Yeo-reum while delivering lunch boxes and falls in love at the first sight. Yeo-reum slowly her heart to warm hearted Yong-jun.
During the 1990s, hardworking Mi-soo and optimistic Hyun-woo meet at a bakery and fall in love while exchanging stories on a radio station, but while their paths keep crossing, the timing never seems to work out.
Two apathetic police academy recruits who become best buddies through the tough training together witness a woman being abducted right before their very eyes. As they were taught in the academy, they quickly report the incident to the police, but the police are in no hurry to jump on the case. So the duo decide to take the matter into their own hands and rescue the woman.
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.
An old man is found dead, and his housekeeper is charged with the murder. Her defense attorney is surprised to learn the only witness to the crime is a teenage girl with autism.
Han Jung-woo, a pilot with top-class skills, is flying high and even appears on a famous TV show. But everything comes crashing down when a careless mistake causes him to lose everything, even his job. Blacklisted in the industry, no airline is willing to hire him. Desperate with no other choice, Han Jung-woo transforms completely into his younger sister's identity and succeeds in landing a job as a pilot.
A seemingly happy family gets rocked by the suicide of the 14-year-old daughter.
Chi-ho works for a pastry firm as a careful and routine-oriented product designer with an excellent sense of taste that led him to find a hit in "tofu shake". He leads a solitary existence, adhering to a tight schedule and, despite his skills, only consumes snacks and chicken. Because of his lack of social skills, he constantly agrees to his gambling-addicted brother's ludicrous requests and lets himself be dominated in order to avoids fights. Il-young is a resilient woman who thrives in every scenario, even joining a loan review consultancy firm to pay off her own debts. Chi-ho and Il-young meet as he's visiting her agency to try to pay his brother's debt. They ultimately become closer, but obstacles arise since not everyone supports their union.
Ah-young, a grown orphan with government aid cut off, starts working as a nanny for Young-chae, a single mother who works at a bar to make ends meet.
Min-kyung, who is preparing for civil service examinations while listening to a thief lecture. her struggling urban survival season.
"We Grow Up" is a remake of the Argentinian film No Kids and follows a single father who has to keep his daughter a secret from his first love from high school, who he meets again by chance, but who he discovers has no interest in dating anyone with children.
