Can someone share spoilers from the novel? Novel reader anyone?

Spoiler from the manhwa season 3-4 :

FL's father :
1. FL's father is Duke Eisen but he is also a true crown prince of Eisenbagh the mana country,
2. He was choosen by mana stones to get the next throne,
3. His country can't kill him because mana stones will disappear if he dies,
4. His older brother is acting as crown prince currently

ML's older sister :
1. The killer of Crown Prince is ML's older sister, Duchess Rachel and her husband,
2. Duchess Rachel and her husband imprisoned FL's mother who is a last sorcerer for 22 years,
3. FL's mother is a childhood bestfriend of Duchess Rachel when she was still Princess

ML's childhood :
1. ML and his nephew the Crown Prince are about the same age so they grew up together
2. FL when she was a child can leaves Duchess Rachel's manor with the help of ML who is still a child

FL, ML, FL's father rescued ML's mother

Eisenbagh Country :
1. The current ruler are from Blue Blood
2. Mana stones choose 2 heirs, from Blue Blood and from Red Blood
3. The blondies, FL's childhood friends actually are Red Blood descendants and the older who is helping Duchess Rachel is the heir of the throne from Red Blood, he might can snatch the throne of true crown prince from FL's father

Thank you so much wish y have a blast everyday...