Cold and precise, An Dan-Te is the no-nonsense director of Yoo Seong CRC, a company which specializes in the restructuring and resurrecting of companies on the brink of failure. Sent to Joybuster, a game company on the brink of bankruptcy, Dan-Te takes on the role of CEO and wastes no time in trying to get this company back on its feet. As head of game development at Joybuster, Shin Yeon-Hwa teams up with her new CEO, in an attempt to save their dying company. Tasked with developing a new game which satisfies all of Dan-Te’s demands, Yeon-Hwa soon finds herself wavering somewhere between having a nervous breakdown and committing murder. Completely at odds with each other, Yeon-Hwa and Dan-Te never seem to stop fighting; but everyone knows opposites always find a way to attract. Can the poker-faced boss with zero emotions and the hot-tempered game developer really find love when they can’t even agree on a way to save their dying company?

Woo Tae Suk is an experienced and well-established detective with a long professional career, but in spite of everything he is a lonely and bitter human being. It all has to do with him only focusing on solving cases, while his actions are completely controversial because it crosses the line between good and evil. Woo Tae Suk crosses paths with a psychopath, but he cannot arrest her because of lack of evidence. The woman eventually decides to help Woo Tae Suk solve other cases.

This time-slip drama centers around Bong Pil and his five friends who travel between the past and present through a manhole in order to stop a wedding scheduled a week later.

When Jo Gang-Ja attended high school, she was notorious for fighting. She gave birth to her daughter A-Ran in her late teens and became more responsible. Her daughter A-Ran is now a high school student, but A-Ran is bullied at school. Jo Gang-Ja decides to go back to high school to protect her daughter. Jo Gang-Ja becomes a high school student again.

In 1994, college students were crazy about college basketball, and Korea's hip-hop artists; with students from various countryside areas attending college in Seoul, they mingle together for true friendship, love and lots of fun at a boarding house.