"The blue sea" is an action drama that tells the story of a mysterious young man who lost his memory. Jo Eun Hee is a female soldier in the navy who works with Sung Ki Soo to carry out special missions under UDU (Underwater Demolitions Unit) Sung Ki Soo is a navy lieutenant who is also a professor at the non-commissioned officer department who is the first to see through the identity of the young man who lost is memory.

During the late 16th century, a trio of ninja orphans are wandering Japan and saving people from evil by battling a villain of the week.

Lan Ruo Xi travels to another state to prevent war in Dong Li. She saves prince Rebu Fengyao and slowly gains trust of his elder brother prince Rebu Hadi.

The winter for third-year university students is the crossroads in their lives. The season where they are confronted with life choices. It is a season that students cannot disregard. There are those who are about to become adults without making any of their own decisions as well as those who have made up their minds. 21-year-old Matsuoka Aoi (Arimura Kasumi) dislikes making trouble for the people around her. Although she likes the sea, she has given up on her dream of oceanographic research and is about to obey her parents (Sakai Maki, Yajima Kenichi) and get a job with their connections. At that moment, she unexpectedly meets students of Kaiyo University and they have to work together for a time at an aquarium near the sea. The sight of them pursuing their own dreams starts to influence Aoi little by little and their own lives also start to change too. Nagata Taku (Yamazaki Kento), Aoi’s childhood friend who has been wholeheartedly in love with her; Yamauchi Kota (Kubota Masataka), the senior whom Aoi admires; the proud Saeki Yuka (Narumi Riko) who is Kota’s ex-girlfriend; Serizawa Ryo (Asaka Kodai) who has something like love for Yuka; Niwa Reiko (Seino Nana) who cannot break off her affair with a married university old boy, Ichinose Hisashi (Ozawa Kazuhiro); Iino Sosuke (Yamoto Yuma) who has given up on his dream because of his parents’ debts. And then, there is the enigmatic photographer, Kondo Shunji (Higashide Masahiro) who passes by Aoi. While the eight of them spend time together, love and friendship gets entwined.

Seo Joon portrays the troublemaker son of a rich businessman. The drama draws the life of Seo Joon as he finds his own success in an alcohol business selling traditional Korean beer.

Eun Seo and Eun Young both grow up at the church orphanage. Eun Seo falls in love with Min Ho’s older brother and had his son. But unfortunately Min Ho’s brother and nephew die in a car accident on the way to meeting Min Ho’s parents. This accident makes Eun Seo forget about her past life and her memory. Min Ho returns to Korea and becomes the heir to the family congomorate. Eun Young assumes Eun Seo’s life and pretends to be her. Min Ho meets and falls in love with Eun Seo.

Episodes: 120