A young prince from the Sun Kingdom has always met with the Moon Princess whenever an eclipse happens-years passed till they fell for each other. Although it was a highly forbidden relationship, they both chose to take the highest risk. On his betrothal day, he ran away from the ceremony and left his family without anyone noticing. As goes for the Moon Princess, she ran away with the Sun Prince from her empire and hid in Earth. But, of course, both kingdoms won't let that slide easily.