This drama is about the tumultuous lives of contemporary twenty somethings, as they worry and learn how to connect with people, how to love, and how to succeed in this harsh world.

Lee Ji Hoon (Kim Min Jae) and Choi Woo Seung (Lee Se Young) are two childhood friends who also happen to be preparatory students for the civil service exam, although Ji Hoon has a secret dream to be a singer and songwriter. One day they meet a popular but problematic idol Yoo Hyun Jae (Yoon Si Yoon), and thus begin the story of passion, love, and friendship among 20s youth in the entertainment industry.

A story about first love and romances from the perspective of three couples in the workplace. It follows an independent young woman brimming with potential who crosses paths with a black-bellied boss.

Because of the prosperous meaning behind her name, Xing Yun is recruited by Xia Ke to work at his gaming company. He is determined and headstrong, a son who refused to take over the family business and chose to make it on his own. In her journey from a sketch artist to a gaming designer, she experiences many extremes and jumps many hurdles in dealing with her black-bellied boss. Their continuous bickering brings them closer and the girl who has never been in love before finds that the last hurdle is love.

The rude and narcissistic boss Bai Zhen Xiang is constantly dying because of the resentment of his employees. Every time he dies, the time is reset to the same day, which causes his employee Li Lu Duo to be trapped in a time loop. In order to break out of the time loop, Lu Duo had to come into contact with Zhen Xiang that drives her crazy, try her best to change him, save him, until she eventually falls in love with him.

Yoshi and Ampere are entrusted to interview big star Putter. The two take a trip to Ko Samet for the interview. Unexpectedly, Yoshi is thrust into the position of temporary personal manager to Putter. What's more, he has to take care that Vivi doesn't get to close to Putter and stir up news. There will be many hard missions Yoshi will have to undertake for this interview.

Cha Dae Hyun works as an auto mechanic. He has a strong passion and talent for working on cars. Thanks to his grandfather, who ran a car repair shop in the countryside, he developed his love for cars. With his personal life, Cha Dae Hyun has a crush on Noh Yu Hwa, but he is shy about expressing his feelings to her. She works as a manager at the car repair center where Cha Dae Hyun works. She has a charming personality, but she also carries an emotional scar that she can't forget.

When you grow up in extreme poverty, the experience can instill a steely resolve to succeed at all costs. Joo Da Hae is determined to leave her life of poverty behind and will stop at nothing until she achieves the wealth and lifestyle she so desires. Ha Ryu, who loved Da Hae and would have done anything for her, is used and betrayed by her in her greedy quest. He later becomes a public prosecutor who must bring her down. But the heartless Da Hae, who rises to become First Lady, has plenty of others who will sacrifice themselves at her whim, including the smitten Baek Do Hoon. Can the ruthless Da Hae be stopped before she goes too far?

Babysitter Gin Shimochiai's wish is to deliver love to children and parents! Gin, a man dressed as an English maiden inspired by her childhood nanny and the story of Mary Poppins, established a babysitting agency solving the problems of parents from different families in his own way.

Tokyo MER is formed by order from the Governor of Tokyo. The name of the group stands for Tokyo Mobile Emergency Room. The members are emergency care professionals and they are to go to sites of dangerous accidents and disasters by ER car. Their ER car is a large vehicle equipped with the latest medical devices and an operating area. There, Tokyo MER saves lives of the injured.