The drama series depicts the life of Tokugawa Ieyasu (January 31, 1543 – June 1, 1616). Takechiyo (who later becomes Tokugawa Ieyasu) was born as the son of a poor and powerless daimyo. Takechiyo lost his father during a war. He grew up lonely and away from his mother. Takechiyo didn't have a clue about what his future would hold. He then has a dramatic meeting with the young Oda Nobunaga.
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.
The series follows the bittersweet relationship between a banchan shop owner whose daughter enters the war of Korea's college entrance exams, and a top hagwon instructor.