[Spoiler]
I don't know the details but Rezef killed Cayena's nanny. It triggered Cayena's instinct for survival since she thought Rezef just wanted her as a puppet and would eventually killed her (though actually Rezef was aware of Cayena's plan to escape from the kingdom. He refused to let her go and wanted to keep her by his side since she is the only one who he cared for now, a.k.a he became a siscon)
So Cayena decided to step up and make plans to snatch the throne from him instead eventhough she need to sell off half of her life for it.
In the end of struggle for the throne, Cayena wins and Rezef was exiled to the South. Cayena still send someone to check on him once a year, though his temper didn't seem to improve from the report so far.
oh wow. thank you for the spoiler!
No Problem
(=・ω・=)
Truthfully speaking, the Emperor is the fucking root of the behavior problems of the prince. AND RAPHAEL SLICK HOT ASFKK
I wanna know what will happen to rezef lol
give me spoilers