Chi-ho, a genius confectionery researcher who has developed addictive flavors, experiences a sweet change when he meets Il-yeong, a call center worker at a loan screening company who thinks optimistically about everything, and goes through sweet changes.
Seon-hee is a high school girl who used to tell lies to get her friends attention. She leaves Seoul guilt-ridden when her friend Jung-mi kills herself because of Seon-hee's lies. In the countryside where no one knows her, Seon-hee begins a new life as Seul-ki.
Jang Mi-rae is a teenage girl who struggles to coexist with her classmates and her alcoholic father. She then interacts with a fellow gamer she meets online, which helps her grow as a person.
Soyoung, a woman in 20s struggling between making a living and getting a real job, begins tutoring a high school senior Minjeong. One day, Minjeong asks Soyoung if they could reschedule a session.
Early 2000s, Ji Hwan who transferred from Daegu to Chilgok falls for Eun Ah who moved from the same town. One day, Eun Ah tells him to go to Daegu for fun.
After waking up with mysterious wounds on his hands, a champion fighter finds himself in an otherworldly battle against evil forces that wreak havoc in the human world.
After an embarrassing divorce ceremony, Hyun-woo returns to the single life that he dreamed of and hopes to enjoy his freedom forever. Just six months later, his ex-wife Sun-young comes back into his life, but as the love interest of Sang-chul, an old friend from high school. Now he has to try and escape from her sudden return and avoid his friend who's keen on introducing his new love to his old friend.
Jeong-won, who forgot the past and lives a peaceful marriage, receives a phone call from the police one day. The man who sexually assaulted her has been caught and the news shakes up the couple’s life and breaks down their daily lives.
A mother who just lost her only hope, daughter, made a critical decision. On that day, she happened to live a life which the time goes back to one day before every day. During the time traveling, she gets the second chance for her life.
Jina is the top employee at a credit card company call center. She avoids building close relationships, choosing instead to live and work alone – until she is suddenly tasked with training a new recruit.
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.