After life's ups and downs, a loving couple separated by death reunites in heaven — only to discover he's in his thirties while she's in her eighties.

Time manipulation comes with a steep price for a young woman, who becomes 78 years old overnight after using a mysterious watch.

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.

A competitive swimmer crosses paths with his childhood friend, a rising weight lifting star, and realizes that she has a secret crush on his cousin.