Jumong  examines the life of Jumong Taewang, founder of the kingdom of Goguryeo. Few details have been found in the historical record about Jumong, so much of the series is fictionalized.

Drained from her life in the city, a young cellist moves to a quiet small town, where she encounters an old friend who helps her heal and remake herself.

Set during the Joseon Dynasty, the story of the meeting between the young widow Jung Soon-deok and young widower Shim Jung-woo as well as the struggle the two go through together to marry off the four young maidens who represent Joseon.

In the dead of night, a body donated for organ transplants mysteriously disintegrates into ashes. Soon after, five recipients, given a heart, corneas, lungs, liver, and kidneys, begin to develop supernatural powers. A teenage girl gains immense strength, a hipster manipulates electromagnetic waves, a novelist summons powerful gusts, a factory manager can heal others, and a woman discovers a strange, still-unidentified ability. Together, they form a reluctant but heroic team known as "HI-FIVE." But they aren't the only ones transformed. A cult leader who received the donor’s pancreas gains the terrifying power to drain life energy and sets his sights on stealing the abilities of HI-FIVE to achieve godlike domination.

An ace doctor in a university hospital is wrongfully accused of a medical malpractice incident and gets ousted from the hospital. He then applies to work at a prison, where he plans to make personal connections with all the big shots in prison with the ultimate goal of getting revenge against the hospital that kicked him out.

A former taekwondo champion and an information desk worker aspire to chase their dreams in a world that isn't kind to those with mediocre credentials.

Seven girls become good friends in high school, then events pull them apart for 25 years. When one of the friends lies dying in a hospital, she wishes to see each of them one last time.