What age are you? Describe yourself a little, perhaps add details beyond what we see in the concept art.
She is a
silly little cupcake in a frilly red dress happy-go-lucky goofball, rather bright, and a bit of a smartass, though never maliciously so. She's usually cheerful and outgoing, but she has a bit of a shy streak, making it somewhat hard for her to actually connect with specific people, but once she's gotten the hang of being around someone she has as much fun in their company as anyone else. She got her shyness from a few run-ins with youkai-hunters, before she eventually made her way to MOTK fairly recently. Her actual age is about 24 or so.
She possesses a pair of sunglasses (with a design which would allow them to be worn over a regular pair of glasses) which contain the power of Rock and Roll. She can't actually do anything with them except use them to look cool.
What race are you?
"Manipulation-of-whatever"-youkai of the Unexpected.
Once upon a time, in a magical forest, there was a rather distinctive-looking rock; it was about twelve feet tall, and when viewed from the proper angle, it seemed to have a rather astonished looking face. After it was discovered, it gained the nicname "the Unexpected Rock" (望外の石/Bougai no Ishi, for you translators to use) and by something of a coincidence, unexpected things began happening there. You know, people finding something they'd lost, or just minor surprises, or making the opposite decision from the one it looked like they were about to make, or suddenly getting an idea that seemed brilliant at the time. It only happened when people were around, though -- you can't have something unexpected happen unless there's someone there not to expect it, or to expect something else.
You can't have something like that happen in a magic forest without
something funny going on, and as a result, the magical aura of the immediate vicinity began to take on the nature of the unexpected, which led to
more unexpected things happening. Since people began to associate this with the Unexpected Rock itself, it began to absorb more magic of this nature -- a sort of self-fulfilling prophecy, on a similar principle to how gods come about and gain Faith. It got to the point where you'd only be able to find it unexpectedly (or if you'd gotten lost looking for it and given up).
Finally, the magic built up, until one day a youkai appeared, fully-formed (and fully-dressed) on top of the rock, with a fully-developed mind to boot. That youkai was Kimiko Fusoku, with the unexpected nicname of "Muffin." This rather surprised the sorceror who'd stumbled upon the Unexpected Rock while he'd been looking for spell-ingredients. She thought this event was splendid (壮大/soudai).
How do you envision the everyday lives of your iji-selves?
Mostly just trying to get by, really. She's still in the "getting the hang of being around" stage for MotK itself, adding to her difficulty with connecting with people.
She tends to use her power over the Unexpected to come out with puns, or to come up with outlandish connections between unrelated things, or to take metaphors slightly farther than you thought you could while still working. When she goes out, she can often be found doing silly things, like sitting in midair curled up in a little ball (like in the official art), or flying around by somersaulting in that position.
Occasionally, she likes to pull unexpected pranks, or to leave hidden messages in plain sight where they won't be found.
What do you do for a living?
She's still finding her feet, so she still hasn't worked that out yet. She has assured people, though, that whatever it is will be unexpected.
Who around you are related to you? In what way?
Not really anyone, in particular, mostly due to her hidden shy streak. She's recognizable, due to her various antics, but she doesn't really have any close friends yet.
The Unexpected Rock is still there. It's quite possible that the process has happened again.
Where do you live? What sort of place is it? Who else lives in your household?
She lives in a small apartment near the edge of the population center, but not
too near. It's somewhat cluttered and messy.
What sort of person are you?
She considers herself only slightly further-removed from humans than a youkai-magician; she's a rather human-like youkai, even if she acts rather catlike (and can purr). There's a rather affectionate side to her, too, which comes from the "catlike" bit.
She often acts as if she was the one in control of things, or at least as if she expected unexpected things, and it seems difficult to surprise her. She has a tendency to add qualifiers like "a bit" and "-ish" to things that make her sound a bit less definite. Sometimes, therefore, her catchphrase of "Splendid~" comes off as being like "Just as planned."
How would you react to a threat?
If it was a generalized threat, she'd try to help deal with it. Threatening
her might cause her to shift into "go ahead. Make my day, punk" mode.
A challenge?
She'd be somewhat interested, in an amiable sort of way, though she won't usually accept if she thought it was too likely she'd lose (her preferred "odds of losing" are lower than most, too).
A plea for help?
She would do whatever she could to help, if she thought she was the best person for the job; this would include getting someone who would be better at it than her.