71% failed to complete the challenge, is it possible to be happy in 100 days? Lee Myung Jin, a cynical ordinary guy, is sick and tired of his everyday routine. Not only that, he usually encounters most misfortunes that made him complai

Sean Benedict "Ben" Park is living in a normal, boring life. Work, home, work, home, you know... a repetitive cycle. And since he's been focusing too much on work, he started ignoring on some things and took it for granted. One night, he died because of a car accident, went to heaven and met the guardian of the Gates of Heaven, Isiah. Now that he has granted a second chance, he has to do all 30 go