There's an underground royalties that lives for 82 years (1940) they need too have a descendance at the age of 18 for Women and 21 for men, they will be thrown off the family if they have a child in not on royalist, if they have a child at young age or older than the age they need, they're will be thrown immediately. and because of that a lot of royalties got thrown except for the family of Zarek the first family that is the original who made the rule and still not breaking the rule. The Family Zarek is now have a twin son that will be soon sitting on the throne of royalty, the first born was Jerome(Jin) which is his the Crown prince while the second born is Sebastian II (suga) that will remain a prince except when the crown prince disagree with being a crown prince, Prince Sebastian II will be the crown prince, King Sebastian I and Queen Juliana is giving the princes a task and that will be the answer for a long time reunion of all the royalties.