Cheerful high school girl Ha-na (Lim Ju-eun) is always the first to come out and protect her introverted twin sister Doo-na (Park Ji-yeon), who has a slight limp. After Doo-na passes away in a fire, Ha-na finds that her body no longer completely belongs to herself. Doo-na's angry spirit now lives in Ha-na, giving her special powers and monstrous strength. Genius criminal psychologist Shin Ryu (Lee Seo-jin) is an expert profiler who is determined to see justice served. When he learns about Ha-na's abilities, he uses her powers to eliminate criminals that are above the law, and to plan his revenge on the man (Kim Kap-soo) who helped his family's killer go free.

Three sisters, all otherwise typical junior, high school student and college students, who, while probing into the murder case of their father, get themselves in the middle of other cases and wind up becoming detectives themselves.

The story of Sima Yi, a great politician and strategist who lived during the Three Kingdoms era. By his side, Sima Yi has his politically-astute distaff members of his household, and pitted against them are the formidable Cao Cao and his heirs. After defending the Kingdom of Wei from Kongming (Zhuge Liang) formidable talents, who will end up with the ultimate power?

Ben, an emergency room doctor, and Tandawan have been in love for 15 years. Tandawan, who owns magical power, starts to doubt whether Ben still loves her. One day, they met a traffic accident and Tandawan is seriously injured. When she wakes up, she loses all her memories.

Recovery doctor Charam appears in her life and she has the same feeling she once had for Ben. During this time, Ben also meets a new girl, Bami, who has a crush on Ben and pretends as an ambulance driver to get closer to him.

Chaesitha is a wedding planner and Wongwen owes him money for her wedding because her groom runs off with her money.

The background of the story of this TV series begins when the educated youth returned to the city in the late Cultural Revolution. By telling a love story amidst the rise and falls of three households because of the family’s entangled grudges.

This drama depicts the in-fighting between women in the palace from the reign of Jungjong to Injong, particularly the power struggle featuring Queen Mun Jung and Jung Nan Jung, her sister-in-law, and the way they pulled the strings behind the scenes.