It's 2016 and a wedding is being held. A group of friends are reunited on this occasion nearly 20 years after their separation. Flashback to May 5, 1995, when they were still in high school. A Good Day tells the story of the youth and struggle of a group of friends that ultimately shapes their present adult lives. Can they find peace with their past and each other to reach a better tomorrow?

Cha Eun Dong has always been an upright citizen who has stood up against injustices. Coming from humble beginnings, she has also practiced patience. Unfortunately one day her family is cast into turbulence after she is betrayed by the one person she confides in. After being brutally deceived, Eun Dong is reborn by the burning fire of vengeance as she swears retribution. In contrast, Kang Tae In has always been a rational man of morals who has always kept his word. Starting as a lowly employee to now the chairman of F Sports Group, he has only depended on himself for a better life. The one promise he has broken was the one he made to Eun Dong, after having to choose between her and his chance for greatness.

A melodrama about the stories of six friends, who each have their own secrets about love.

A story that follows an ordinary girl with five brothers who are unique in their own right and her melodious romance with the prince of piano. Pu Qi Cai has five older brothers who share her family name despite some being adopted or a relative. Being constantly associated with the popular and handsome Pu Zai Yu, Pu Zai Gong, Pu Zai Shang, Pu Zai Jiao, and Pu Zai Zheng, Pu Qi Cai has become so used to extraordinary men that she thought she has become immune.

One day, she crosses paths with a young man because of a cellphone. He is Quan Xi Zheng who may be handsome and excellent at everything but also has a sharp tongue that pushes Qi Cai's buttons. To make matters worse, Qi Cai can never beat him at his own game. Qi Cai's older brothers step in to help her but nothing works until she discovers Quan Xi Zheng's secret that revolves around a musical score called March Minor.

Adapted from a novel of the same name by Xiao Ni Zi.

Students at an arts high school strive to prove that they are the “real deal” amidst a culture where mimicking one another is the norm.

Han Yoo Sung is a cold-hearted and upright son of a wealthy family who seems to have grown up in a bubble. But little do others know that underneath his prickly exterior is a student who is itching to show off his talents. He despises mimicking others or being mimicked himself, but he gets wrapped up in a strange rumour that claims he has been copying Ji Soo Bin, a famous trainee at a major entertainment company.

Ji Soo Bin is the son of an entertainment company executive who is in the spotlight for being a famous trainee. Despite receiving so much attention, he is a mysterious character who actually has a secret he strives to keep under cover.

Oh Ro Si is the center and the youngest member of the girl group ICE. Although she is loved for her amicable and easy-going personality, she receives poor treatment from her fellow members. When returning to school after her idol activities, she aims to find her own sense of identity.

Shin Da Ra is a student who runs her own YouTube channel with videos documenting her daily life at the arts high school. She hates being alone and wants everyone to adore her. Shin Da Ra used to believe that friendship is defined by mimicking the person she likes, but she is challenged to rethink her approach after befriending Oh Ro Si and Han Yoo Sung.

Follows main character Labour Standards Inspector Rin Danda whose job it is to protect the workers.

In order to find out the truth about his mother's death, the heir of Feng Shang Group, Shang Bo Ran (Chen Xue Dong), joins a fashion magazine publisher while hiding his identity. There he meets his rival at work, the naive and optimistic, Lu Xiao Kui (Ouyang Nana). Due to a strange combination of circumstances, the two bickering colleagues end up living together and gradually fall in love with each other.