Hundreds of years before there was a place called Pyeong-on, which is the literal translation of the word Calmness.

Though they have a king in the centre of the country, this beautiful land is ruled by the land ruler Park Sungtae.

His loyalty and capability in keeping the Pyeong-on people well protected and happy, made him so loved and admired by his pupil.

Not only the ruler, his wife Park Younghwa, his sons Park Chanyeol, Park Jongdae, Park Sehun and Park Jongin along with his son-in-laws Park MInseok and Park Kyungsoo are equally loved for their service and down-to-earth nature towards their people.

The land is well protected and secured by the ruling family along with the powerful army force headed by two admirals Zhang Yixing and Kim Junmyeon.

The story is about this family and how their life changes with the new additions to their family.

It's a story about love, hatred, betrayal, insecurities etc. and how in the end everyone gets to see the beautiful sunset together.