Lee Sang-yoon

Having broken up with his girlfriend, law student Eun-sik is keen to consummate a new relationship with Kyung-ah, a popular swimming champion with a painful past. Despite help from his friends, Eun-sik begins to doubt himself when Gi-joo, a suave prosecutor, tries to compete for Kyeong-ah's affections. (en.wikipedia.org)

A married couple with a mysterious past has to save the plane when it is hijacked by North Korean agents.

Hong Tae Ra has no recollection of her past, but she is marred to Hong Tae Ra, who is admired by those around him, and considered to be a promising presidential candidate. In order to protect her beloved family, Hong Tae Ra must become the First Lady of Korea. (AsianWiki via MyDramaList)

Choi Michaela has a special ability to see other people's clocks and discovers that Lee Do Ha can stop the time of his vital clock, so she decides to pursue him and they fall in love and have a romantic relationship. (imdb)

Tells the story of a tough and rogue female prosecutor, who one day loses all of her memories and changes places with a conservative housewife who looks just like her. (imdb)

Various contestants take part in a game show with a prize of 10 billion won. The contestants who can cheat the others wins the prize. Contestants include genius swindler Ha Woo Jin and naive college student Nam Da Jung. (mydramalist)

A woman whose seemingly perfect life is turned around when an anonymous messenger tells her her husband is having an affair. (imdb)

EMT Yoon Soo-wan, who had been blind, and successful surgeon Park Dong-joo were each other's first loves, but were forced to separate due to painful family circumstances. They cross paths twelve years later, but Soo-wan engaged to another. (imdb)