Rosamund has had only one dream since she was a child - to have a "home" and protect her "home".
This seemed a bit out of reach for an orphan, but gratifyingly, she finally realized half of her dream at the age of thirteen.
She took her adopted sister Rosanna and was adopted by the Tyrell family, finally having a family. Although the family arrangement was a bit strange, Rosamund thought that most people would not have two fathers, but she thought it was harmless.
What she cares about is that in this vast Westeros, she finally has a place she can call a "safe haven".
*Because I want to watch Lan Luofu raising children, I am passionate about it. There will be no fight for the Iron Throne today, only warm family comedy.
*This is an if line where Renly and Loras are raising children in Highgarden (?)
*The elder sister and the younger sister are a couple (although they only talk about it in the middle and later stages), if you mind the hypocrisy, please do not enter.
Concept: Family warmth and daily life