Four friends pledge to commit suicide together but while standing on the ledge, only one of them actually jumps. Her ghost begins to haunt the remaining friends until the pledge is fulfilled.

One day, Yi-rang fakes a fall in a race because she was afraid of losing. After the race, she decides to never run again. Soon, Yi-rang becomes friends with Soo-min, a new student from Seoul, and starts to ask herself about her future.

Unemployed Jae-wook is dumped by his girlfriend without notice. He was a burden for Sae-mi who was at the age of having to think about marriage and her future and he wasn't disqualified for it. Jae-wook is shocked and wanders around still jobless in the house of Joon-ho who is currently dating Hye-jeong who is 4 years older. Jae-wook meets Eun-ji at a indie band performance and his life changes as strange feelings begin to develop between them.

Sang-eun is a beautiful 20-year-old girl who is mentally challenged. One day she happens to meet a boy and deludes herself to think he's a beast under the vicious spell.

In 2003 the year of Aomori Asian Games, Dae-woong, a former ice hockey player receives an offer to be a director of Korean national ice hockey team. Before he enjoys the moment, realizes it is a woman national team with bunch of losers; a figure skating player who wants to get married by becoming a national team, a former field hockey player, now a fat housewife, and an expelled short track skater. As an ace player, Ji-won, a former national team player of North Korea, joins the team. But they still have hope as only 5 teams participating this year. With the great victory of first match, they feel the medal is closer, yet Ji-won meets her sister left in North Korea alone as a next opponent...

Hong Seol, a student from a poor family, meets a rich Yoo Jung, who is her senior at her university. They both develop a rather inconvenient relationship after knowing each other.

Dae-guk, a nosy man from Apgujeong, and Ji-woo, a cold but skillful plastic surgeon, open a plastic surgery business in Gangnam. Dae-guk is an unemployed man who likes to pry into other people’s businesses.

Ga-in, a high school student, witnesses the deaths of her relatives who die from a curse. Once she finds out that she is the next target, she asks her boyfriend to help her break the spell.