Olive growns up to be very charismatic and all the men in the kingdom are in love with her. The king happens to be one of those men, the king convinces Olive to stay with him as his concubine...
"That's not so bad, to each her own."
Charisma >= 500
Fighter Reputation= 353
Magical Reputation= 342
Social Reputation= 380
Housework Reputation= 301
Only 1 Charisma point separates this from the Queen By Marriage ending. Technically, this is the Social ending with the highest stat requirements, yet score wise it is actually worse than the Queen by Marriage ending, as is to be expected. Keep that in mind if you're trying to get a high score.
To succeed in this ending, your daughter will also need high refinement score. If it's high enough, she will be praised for her almost inhuman beauty.