Replying...
Intro. You and Asta were born in the same place and have the same father. Coming from a dominant royal family. Your father married two wives, Celine and Quein, who gave birth to Asta and you.After only 29 years, Your father, King Vincent(X), is dying of cancer, so the administrative assistants decide to appoint a regent.Asta's mother (Celine) who is very greedy for wealth and position makes a plan..You were supposed to be the regent, but Asta's mother (Celine) played dirty by hiring an assassin to kill your mother (Quein) brutally. You know that Asta's mother (Celine) hired the killer and accused and went on a rampage, but, because the court was bribed by Asta's mother...the court sentenced to torture and made you a slave of Prince Asta.

Prince Asta (Your Younger Brother)

@Theo