Well, since this is about the Cinderella Girls, I thought I do some profiling and try to get a discussion running. Well, here's the first of my profiling, which is my fave idol from the group to date, Mio Honda:

Name: Mio Honda
Age: 15
Height (and after upgrade): 161 cm
Weight (and after upgrade): 46 kg
Three sizes: 84-58-87
Birthday: December 1
Constellation: Sagittaurus
Blood type: B-
Handedness: Right
Hometown: Chiba
Hobby: Shopping
Quotes:
Profile comment: I’m Honda Mio, 15 years old. I’m a high-school freshman. I’m doing my best to become a bright and cheerful top-class idol. Hehe. Please take care of me from now on.
Intimacy level up comment: Producer, let’s do our best today too.
Intimacy level MAX comment: Please, take care of me until I become a top idol. From now on, let’s join our forces and do our best.
Leader comment: Arrrrright, it’s showtime!
Greeting: Morning!
Greeting: Producer, thanks for your hard work!
Greeting: I’m doing fine today. Hehe.
Greeting: Ok, let’s get to work!
Greeting (exclusively at intimacy MAX level): Hello, sempai~! Hehe, are you surprised?
Work done: Thanks for your hard work.
Work done: Come on, let’s get to our next task!
Work done: Producer, don’t take any pause! Let’s move quickly!
Work done: It was fun. Shall we repeat?
Work done (exclusively at intimacy MAX level): Did you see how I did it, Producer?
Honda Mio+ (after upgrade)
Quotes:
Profile comment: Yay! Producer, thank you for such an adorable costume!! I felt like I can do it! Hehe, I think I can jump over my head. Take care of me, will you?
Intimacy level up comment: Producer, we’re getting along pretty well together, don’t you think?
Intimacy level MAX comment: Producer! I have a bunch of time today. So, er, I was thinking to go to dinner with someone.
Leader comment: I’ll absolutely win.
Greeting: Morning!
Greeting: Producer, what kind of work do we have today?
Greeting: Ok, let’s get to work!
Greeting: Orange color kind of cheers you up, don’t you think?
Greeting (exclusively at intimacy MAX level) Hello there: You say you’re doing your best, huh?
Work done: Thanks for your hard work.
Work done: It was right on the mark.
Work done: Come on, let’s get to our next task!
Work done: Hehe, Producer, how was it?
Work done (exclusively at intimacy MAX level): Producer, will you go for a date with me on our way home?
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Evaluation
That smile was love at first sight for me ~tsu!
As you may have guessed, she’s a genki character as well. Mio is an optimist and a non-stop doer, normal traits for any Sagittarian. She takes being an idol in a way that she wants to be a top idol quickly, probably a trait taken from her shopping hobby ~tsu.
For a girl who has a hobby of shopping, one may expect that she’s rich. But as mentioned by her profile comment, she’s a normal high-schooler, so she may be of middle-class, but for certain, not that rich. Since money’s neither her key weakness or strength, I can assume she goes to bargain deals. Quite possibly on sales too, as you wanna get what you might want before someone beats you to it ~tsu.
Because of her tendency to finish things quick, she happens to leave some free time. Since she has a non-stop habit, she tends to do stuff on it (such as spending the free time doing a previous work again). She can also direct this effort to make unplanned events ~tsu.
Mio appears to be a person who does not want to disappoint, not herself, not the Producer. She aims to please, and that adds strength to her character. I’m gonna have to take it that getting a feel of worthlessness is what takes her to drop her cheerfulness, as she is all about doing things and aiming to please ~tsu.
TL:DR: Cheerful, quick, aims to please, likes to shop ~tsu!
Oh yes, the person I asked to translate this didn’t add them, but Mio has her own verbal tic, or tics rather: “-tsu” and “-netsu”. Pizzaman said it’s a feminine note. A moe device, if you may. It suits her, and makes her more cute.