She is the second sister of the 4 Kokubun sisters.

She is a thoughtful girl who likes observing the stars in the night sky.

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Hi. The sky is full of stars today.You can see an entire beautiful sky from here.

I am Kiara Kokubun, and a sister of Irone. I think you've already met her.

…My sister asked you to tell me something?

Probably, it's Shiritori. What's the first word… It's "Odo".

Then, I go "Unkai". Oh, why?

Because I like skywatching, especially, stars. 

When you look up at the sky, don't you feel like you are released from all responsibilities?

Speaking of responsibilities, your journey will have a lot of effects on others, 

even if you can't notice them. Well, please tell my word to sisters for me.