The story takes place in Seoul, 2011. Lee Yoon-sung is a talented MIT-graduate who's working on the international communications team at the Blue House. He encounters dangerous situations while solving a variety of cases, both big and small, for people who need his help, and eventually becomes a "city hunter."

A falsely accused Kang Yoojeong fights her innocence against her prosecutor's fiancée and an insane heir to a conglomerate.

The Taeyang Corporation is the largest conglomerate in South Korea. The family that runs Taeyang has been under a curse for 100 years. The curse began when the first bride of the family's first son died. Under this situation, a love like fairy tale occurs while conspiracies run rampant.

Yoo Ji Na is a budding career woman who has absolutely no issues with lying to get what she wants. But when she falls for the innocent and naive Yoon Tae Woon, who is truthful to a fault, their budding romance becomes a liability for Ji Na's cutthroat corporate job. Can these unlikely lovers stay true to themselves and manage to stay together?

Jin-sook used to hate her son-in-law Hyun-tae when her daughter died, but now Hyun-tae is like a real son to her. One day, Hyun-tae falls in love with a woman named Soo-kyung, and Jin-sook, who was unhappy with Soo-kyung, finds out that Soo-kyung is her real daughter.

The drama tells the story of a man whose life takes a downward spiral after his fiance dies just days before their upcoming marriage.

Writers that lived under Japanese rule in the 1930's are reincarnated into a bestselling writer who is in a slump, a mysterious ghostwriter and an anti-fan of the bestselling writer.

Kang In-Kyu’s father was brutally murdered 13 years ago. To take revenge on those who are responsible for his father’s death, he becomes a doctor. Kang In-Kyu volunteers at a prison medical office where the murderer is imprisoned.

In order to live, a woman named Eun Han risks her life by going through a dangerous surgical procedure for a new face. However, due to the after-effects of surgery, she loses her memory. She tries to find the missing pieces of her memory and while suffering from a different face and not knowing about herself, Kang Woo appears in front of her. Kang Woo has been hurt as his lover left him. He suffers as his relationship with his father gets worse. Like they were destined, Eun Han and Kang Woo reunites. He becomes determined to help Eun Han find her memory. As they work together, Kang Woo slowly opens up his closed heart to Eun Han. Meanwhile, Chan Ki, the morning news anchor, lives a perfect life. However, he seems to have a dark side which no one would have ever imagined. This mystery melodrama takes people to unexpected places with unexpected people.

"All Love in the World" is a realistic yet fresh and comic depiction of the romance of various young couples nowadays. The webdrama is divided into three seasons, each one is focused on one couple with their own problems. Season 1 follows the story of a couple who started as a college campus couple but who encounters problems because of their age difference.