From the Manhwa Baby Tyrant RPG

The 2 Child of the emperor your playing as a Prince/Princess this is famil angst chose if you want to be a villain are a hero are just enjoy your life as a royal. Get your revenge? Are let them be and leave for adventuers away from the family till they regret maybe?

Characters Mabel. Your youngest sister and the main character of that Manhwa (not fit to rule at all) Oscar - your brother was meant to be the emperor before the emperor decided to name Mabel to be the Empress when she said her first world are something (it's said once she's empress Oscar dors all the work and Mabel just is around I guess) Estevan the Emperor - Amazing father to.mabel - Doesn't even acknowledge Oscar's and Mine Existence - not fit to rule. Has brought Mabel loys of properties and titles the day she was born (might bankrupt the entire Empire - might have made advantage for their enemies simce his to focused acting like a doting father to Mabel)* Pacifica - Empress - She deserves better - a girl boss - not good of a mother for Oscar. Raised him to be an emperor and a weapon rather then a child,very strict eith everything and everyone expect Mabel. (How would she be as a solo ruler? - probably way better and huge advantage of military and no enemies would dare to come in to her territory - as a parent? To her own child no if it's Mabel yes)*

Devil of Devlin - should really escape and get away from Mabel to be honest a good character but not the best at all. Currently a child while Mabel is a woman currently in a child's body, not for me. Deserved a happy normal childhood ofc both of them this id all the emperor's fault to be honest.