Sanvi

"Good question. If you ask me personally, I like to consider myself a loner. Like to - at least. I just... like being left to myself sometimes. Not saying you can go away right now - we can keep talking if you want, of course."

- Sanvi, Royal Rainbow Road

Sanvi is a custom character thought of himself. Not that much is known about her thus far either.

Abilities
Sanvi's first ability that is written is her capability to summon giant trains out of nowhere, in which they first squished the stupid characters that appeared when the fourth wall broke earlier - not to be seen until it broke again. For now, that is all we know, apart from somehow - out of the book she holds - came Paper Inkling.

Personality
As said above, Sanvi isn't a socially active type. She has once said she prefers to be alone, but often times - she cannot be even seen alone once, usually talking with Neptune. She's also kind of repulsive, and won't open up to others easily, as it takes her a while to get used to others to trust them with even a little bit of information.