There’s a universe where humans, magic creatures, and extra terrestrial beings live in harmony,

where magic and machinery combine.

And several stars evolved into planets, planets with monarchies.

Princess Seohyun, from Kkampag-ida, is forced into getting married with Prince Kyuhyun of Yong-Gamhan.

How will Seohyun, raised as a humble yet rebellious child who was mostly left to make decisions on her own, cope with being engaged with the arrogant yet charming prince?