Angkor is the beautiful daughter of a high rank officer of Cambodia. Before she was born, her father had slain a tiger. The spirit of the tiger lives on inside of Angkor and possesses her when she looses herself to her anger. An inner struggle in Cambodia forces Angkor and her friend/body guard, Koytee, to flee to Thailand. Along the way, they get separated. Angkor eventually arrives at the refugee camp in Thailand alone awaiting Koytee. There Angkor meets Pookong Kan, who was secretly sent to investigate the case of several missing and deadly war weapons that may be linked to a few of the officer's corruption. By chance, Angkor gets mixed up and becomes an important witness to the murder of Pookong Kan's comrades by Muad Rit.

Attorney Jung Young Woong leaves the PD's office because he is tired of dealing with the people who commit sex crimes. He starts his own firm and hires 4 questionable lawyers to work for him, ensuring justice for the citizens of Korea.

A story revolving around a sunny youth and a marine biology student as they work together to protect the ocean.

An Fei is a scholar who harbors a crush on a young and accomplished scientist named Mo Liang. She dreams of becoming a top researcher in the country in order to protect the ocean. One day, she encounters Ye Hai, a young man who seems to bring her bad luck. Ye Hai not only opposed the project that An Fei has been working on but he also makes up stories about her by claiming that she's his wife. Finding Ye Hai arrogant and weird, An Fei tries to avoid him at all costs until she realizes that he may have been right along. As she gets to know him, memories of a past relationship begin to surface just like the legendary story of Poseidon and Amphitrite.

Shin Se Kyung and Shin Shin Ae (Seo Shin Ae) are a pair of sisters who came to work as maids in Foodstuff company President Lee Sun Jae's house after their debt-ridden father Shin Dal Ho (Jung Seok Yong) runs away leaving them to fend for themselves. Due to the sisters living their lives in the mountains, everything in the city (outside world) are both new and curious for them especially for the younger sister, Shin Ae. Living together with President Lee is his daughter Lee Hyun Kyung, son-in-law Jung Bo Suk, doctor-to-be son Lee Ji Hun, grandson Jung Jun Hyuk who is a high school student and grand-daughter Jung Hae Ri' Jun Hyuk's school deen, Kim Ja Ok, is in love with President Lee who is widowed.

The peaceful existence of an ordinary family is disrupted by the arrival of a mysterious nanny. This is a story about unraveling a truth that has been kept secret for many years.

Twenty years ago, Wu Lihua (Rong Rong) who works at the hospital discovers an abandoned baby. Wu Lihua and her husband Liu Ruobing (Liu Rui) decide to raise the baby. One day, Wu Lihua encounters a child that has been rushed to the hospital in need of emergency care. Because his mother Li Yuwen (Gong Xiaorong) did not have money, Wu Lihua uses her own money to pay for the surgery.

Through an unexpected turn of events, Li Yuwen arrives at the Liu household as the new nanny. Li Yuwen has dreams in the literary field, which earns the support of Liu Ruobing who helps her become a writer. The act of kindness does not go unnoticed as Wu Lihua starts to become suspicious. Is Li Yuwen a sheep wearing wolf's clothing or is she as good as she appears?

The second season is set in even more turbulent times than the first; during the reign of Emperor Gojong, a period where every aspect of Joseon, from financial, military, and economic to the culture was spurred towards modernization. The chaos and confusion resulting from these rapid changes form the background for the crimes that occur, forcing the Byul Soon Geom to be reformed in order to investigate them. The team is led by Jin Moo Young and Han Da Kyung, two people with deep scars and burdens from their past.

Vud was in love with Kompai (Kob) but didn't have the courage to confess his feelings so he became close to her sister, Rodsarin, hoping that he would have a chance with Kompai. But when he realized that Kompai was not interested in him at all, he became engaged to Rodsarin before leaving to study abroad, along with Rodsarin's friend, Thitha. Thitha and Vud ended up starting a relationship while studying abroad. Vud sent a letter to Rodsarin, telling her that he was ending their engagement. Rodsarin became heartbroken and passed away. Kompai vowed to get revenged for her sister. She used Panin (Chakrit) as her tool to get back at them. Kompai planned for Thitha to fall for Panin, with the intentions of never letting her being with him.