Lucas, the crown prince, is the heir to the throne. He carries the weight of responsibility and is expected to lead the empire one day, but he has a secret...he can see something no one else can see... a system! Marcus, the second prince, can regress, which means he can turn back time. Athy the first princess, is a reincarnation, which means she has lived past lives. Lexi, the 2nd princess, is a skilled warrior known for her bravery. Emily, the 3rd princess, is a saint known for her purity and kindness. Leo and Rachel, the twins, are the 3rd prince and 4th princess. They share a strong bond and often get into mischief together. Lastly Eden. the youngest prince is a demon and possesses unique abilities, however being born into the holy empire is not good for the young prince as demons are enemies. What makes it worse is that the renowned Heavenly Empress is too overpowered! Each one of them has their challenges and adventures in the Heavenly Empire.