From the descriptions and looks, this native speaker is inspired to suggest:

Name : 千晶　ちあき　Chiaki

Meaning: A Thousand Glitters

Nickname: ちゃこ　Chako

.... >.>''
just glancing at the picture and...
hachiko just came to mind
if not that... then maybe junko or aya? >.>'

The 雪子 kanji for Yukiko means Snow Child, so if she was born in winter, I think I made an excellent suggestion.

A special thanks to: Everyone! ("What do you mean everyone?" "EEEVERYYOOONE!" sorry. Movie reference.) who has taken time out of your busy schedule to help me with this arguably trivial personal problem!

So far I'm liking all the suggestions, but I still haven't heard one that makes me jump out of my chair and go: "THAT'S IT!".

It is probably unrealistic of me to hope for this reaction, (so feel free to smack me if you need to) but I think I would be remiss not to continue looking at a few more names, just in case.

"Yukiko" is going on my list of considerations, as well as "Chiaki" and possibly a variant of the name "Aya" which I have often thought about but never put on 'The List' in an official capacity.

If anyone can think of a variant on the name "Ryoko" (or something similar to it, phonetically speaking) that has a meaning that fits my requirements, I'll be your best friend forever. (Unless You'd prefer I WASN'T your best friend... in which case I won't be. Wait... :confused: )

There's some little other thing that's bugging me... but I can't put my finger on it...

So I shall go away and come back later with something hopefully helpful. Till then! :ywave:

I think Yuri is a good name for this character, she seems tom-boyish looking, and Yuri refers to lesbian anime/manga, so they kinda correlate, right? Ruka would also be a good name, it means bright blue flower and yet it sounds masculine.

I LOVE the name Lukian.
Even though it's greek. U can write it in hiragana and make it.. Japanese? XD haha

Ruka... hmmm... that one REALLY intrigues me... can that be written... with kanji? Wait, never mind, I can probably find out myself. Maybe.

Oh NO! By that logic, any name that could be written in hiragana would become Japanese! *head explodes* :D

You see, I like Ryoko... A LOT. I just never found what I thought was an appropriately interesting meaning...