Waltz in Wonderland!~

Which also tells me that the princess is often picking up other selves to take her place to put up with people who don't really care much for her. She doesn't appear to have any actual friendships to uphold, no one who she is close to, no one to notice when she's no longer around.

Only her handler seems to care about how she feels or what she wants.

We know other self Sabrina has friends and an active school life, people she is currently invested in and care about. We know that if she went missing people would notice and worry for her safety right away. That kind of life...I bet the princess wants it more than anything, more than money or royal luxury. I mean why else would she just keep running away?

Of course she always comes back. That's probably a moral dilemma she struggles with, take the place of her other self forever or return home and let the other self go back too.

but also, something that reinforces this is the way she dresses. Only her servants are aware of how weird it is she's not wearing period appropriate clothing all the time, but even then they don't notice her eyes are a different color. Princess Sabrina has green eyes while her other self has amber eyes. Even Caesar doesn't notice this and he's obsessed with her beauty! He doesn't care about her either! No one so far has shown any kind of consideration for the princess outside of their designated social roles. I mean yeah, it's old school Japanese culture but even so, I've seen classic otome and magical girl stories with more care than this! I think it's pretty indicative of the kind of like princess Sabrina has to live and it's a pretty sad and lonely one.