The Secret Realm is the overall chapter, and Sapphire is the first chapter and the first world.
A group of living demon kings got a book by chance at a party, and accidentally traveled through it, for the sake of their family and beauties in the real world...? In short, in order to go back, they have to deal with secret realms and complete tasks and cases. They grow up together, have ups and downs, and will also fall in love and kill each other. Is he the one behind the scenes? But what is his purpose?
But luckily we have each other. So what if we start over?
Intention: What you feel and think, open your imagination
