Meruhime
Some princesses live a life of luxury, pampered by their indulgent parents and their doting staff. Others become warriors, and eventually lead armies. Still others are captured by evil beings, who are inevitably slain by the princess' One True Love. ... so how often does a princess get sealed in a tower by her own family?
Meru can't help that, of course. It's the only life she's known, in truth. For as long as she can remember, she's been in that tower, sealed away from the outside world almost entirely... but not quite, as you can see in the picture.
... you see, Meru's sealed for a REASON. There was a prophesy given at her birth, regarding her being the instrument of her nation's downfall, and a powerful wielder of dark magic. So, her parents, despite being thrilled at having ANY child, decided that, for the good of the nation, they would seal her away. They constructed a tower, sparing no expense in reinforcing it, magically and physically, and then sealed Meru inside, with a staff dedicated to keeping her happy and healthy. At least, as much as possible.
... and, you know, she HAS been relatively happy, most of her life. She got a bit happier once she came into her figure, and happier still when she found her maids quite receptive to easing certain needs of hers. Having the needs of both genders, she's actually quite needy indeed, at least sometimes, which leads to issues at certain times. ... fortunately, after a few close calls, her parents had a spell placed on her, rendering her infertile(for now).
.... most of the time, though, she's BORED. There's only so many cute maids to hump, so many books to read, and so many views from the tower. She's read about other places, and now she wants to GO there, and do things! She doesn't understand why she can't leave, why the tower lets everyone else leave but her, but frankly, she's a big hacked off about that, too! ... but still, at least it's an easy life. Could be worse, right?