
MYGOSH I JUST FUCKING REMEMBERED WHOS ATHEL WILL END UP WITH AT THE END AND IM SO FUCKING JEALOUS RIGHT NOW (๑•ㅂ•)و✧

Rezef was never the Emeperor's son. He was the son of the late Empress and the father of Raphello (the dad hates Raphaello and Kidreys but enjoys living off their money and status he is a scumbag) a product of their affair.
The Emperor killed the Empress after he realised she had cuckolded him by using her allergy to almonds.
He had Rezef branded his bastard to save face but also ;
-Cover up that the Empress had cheated on him
-Punish the Empress that now her son will have the label of bastard
- Not automatically entitle him to inherit the throne - he doesn't want Rezef to be his successor.
Cayenna turns on Rezef after he does something he cannot forgive - murder her Nanny out of jealousy.
Not only that he frames it as a suicide which is the most disgraceful way for someone to die in their world.
She realises that he is beyond rehabilitating and commits herself to taking the thing he wants the most- the throne.
Cayenna ends up becoming Princess Regent filling the role as temporary Empress until Ethel becomes Emperor when he is 20. Ethel marries Olivia who becomes his Empress.
Can you recommend me some mangas similar to this???????
Try https://www.mangago.zone/read-manga/the_savior_s_book_caf_in_another_world/