A retired hitman whose wife goes on a trip with her friend, and asks him to look after the friend's teenage daughter. Things go awry when he is forced to use a little violence to protect the girl from juvenile delinquents, but then they are found dead and the girl is kidnapped.

Hacking was the only way out of Kang Sun Ho’s miserable life ever since his parents passed away from an accident when he was just ten. He eventually puts his genius hacking skills into practice in an attempt to steal illegal gambling funds to pay for his adoptive father’s cancer surgery. One day, Sun Ho bumps into a charismatic judo girl, Oh Kang Hee, and falls in love at first sight. Just to be with her, he sets a goal to get an acceptance letter from the same university as Kang Hee’s and eventually gets accepted. However, he does not expect a familiar face from his previous misdemeanor, Yoo Dong Man, to greet him as his professor. At first, he’s not very pleased to see him again, but he gradually grows fond of Dong Man, the man of justice, to the point where he respects Dong Man’s philanthropic and brave nature as they continue to bicker with one another. Just like that, what started as love at first sight becomes Sun Ho’s life goal, a police officer.

Having died unexpectedly, firefighter Ja-hong is taken to the afterlife by 3 afterlife guardians. Only when he passes 7 trials over 49 days and proves he was innocent in human life, he’s able to reincarnate, and his 3 afterlife guardians are by his side to defend him in trial.

Yoo Hyun-Jae is a member of a popular idol group. He has a lot of fans and he is a scandal maker. Meanwhile, Lee Ji-Hoon is an aspiring singer. He pretends to be studying for his civil servant exam, but he is actually struggling to become an idol.

The drama is set in the backstage world of broadcasting industry. The story revolves around the dynamic work and life of people who work in entertainment division of television network.

Jang-bu was an ordinary boy except his special talent; To see every moving thing like a slow motion video. As friends teased him by calling ‘monster eyes’, he decided to stick at home and not to go out. Television has been his only friend. Time passes by, and now grown-up Jang-bu works at the CCTV control center which is the best job for him. When he sees people’s life through camera, he feels he’s sharing their ordinary life that he’s never had. This new job opens his heart to the world and Jang-bu starts to make some friends out of the control center. With his dear friends he receives sense of himself and finally decides to propose a girl that he loved for long from CCTV…

A man and a woman who is only given so much time to live fall in love and resolves heart aching love into a bright and cheerful one.