Gu Jinchao, raised away from home due to a fortune teller's warning, grows up bold and free-spirited under her grandmother's care. Returning to the Gu family, she faces challenges head-on, drawing the attention of three influential men.

Ha-Jin (Yoon Jin-Seo), Yoo-Jin (Shin So-Yul), Tae-Suk (Kim Da-Hyun) and Kyoung-Chul (Lee Si-Yeon) all attended the same high school. Due to an unsavory incident, Yoo-Jin disappeared. 10 years later, these four people are now at the same place. The next day, Yoo-Jin, who is a budding novelist using the pen name of "Jin-Jin," is found dead. The other three are now suspects. Veteran detective Dae-Sik (Kim Min-Sang) tries to solve the case.

The missing case of a young girl unfolds several hidden crimes related to a medical racket as investigation progresses.

Mi-yeon, an elite woman with a mysterious past, and her husband, Yeong-jeon, a novelist who doesn't know her secret. Mi-yeon is the head of a large corporation. She is a woman who enjoys a free-spirited sex life and is married to a novelist, Yeong-jeon. On the other hand, a married couple, Taeh-yeon and Seo-ra, moved into their neighboring house.

A young man tries to provide a future for his brother and reconcile his conscience with the harsh reality of the world in which he lives.

Jin, a first-generation Chinese immigrant and single father, struggles with his relationship with his American-born daughter. One day, Jin unexpectedly encounters his ex-lover from China, who had chosen not to move to the States with him.

As children, the introverted Smile was being bullied by a gang of kids until the brash Peco comes by and chases all of them them away. Peco then takes Smile under his wings and teaches him how to play the game of ping pong. From there a life long best friend relationship comes into existence between these two polar opposite kids.

The household life of Seno and Alya keeps one big secret. The secret slowly begins to unravel when Abdi, who is Seno's friend and brother-in-law, begins to investigate Seno. The investigation was initiated because Abdi suspected that Seno had a special relationship with his co-worker, Wina. However, Abdi's investigation leads him to find strange things inside Seno. Some of them made Abdi see various apparitions of scary spirits and strange incidents that led him to reveal the secrets of someone's past who once ran away to get supernatural powers.

I married my first love husband and lived with only my husband for 10 years. If you don't even wear clothes, you'll live if you feel bad about the money your husband makes. Suddenly, one day, when her husband leaves for a woman, he panics. Ji-hyun, a friend who pretends to care about her friend Ji-hyun, who calls her friend Ji-hyun, and sees that Yu-ra... Middle... Discovers a strange site and calls his friend Ji-hyun for help. Yu-ra learns from Ji-hyun's husband, Min-woo, that her husband has visited adult sites frequently... In order to visit the place, she leaves the house with a male dress. Jennifer came to know there... Yu-ra began to doubt her husband's past...