Rodin is too young and too weak (politically) to be her guardian or husband.
The ex-King is the best candidate as he is royalty but not involved in politic.
Even if they have a child, the child can't inherited the throne.
The current King already has a fiancee he loves so much
and he prefers Ewey to be clan leader since he originally want to demolish Nylle family.
And yeah Argit kinda likes her. Well depend on the setting, she's 15 and might be an adult (or not).
She's mentally over 30 anyway.
Argit the ex-King was crowned when he was 12, but stepped down because his (ex)consort injured the Holy Spirit.
I thought the current King Amnat is his nephew but it seems he's his son.
I guess he's really an uncle.
His last two queens are full of trouble and the marriage is political. So far until Ewey meet the founder of Nylle, ANOTHER REINCARNATE JAPANESE NAMED SAKURA, there's no romance. Again, Argit has taken liking to her because his past with woman was very bad.
Prepare for the troubled age-consent readers, everyone~