While you say she isn't Yuna, it does seem she is at least taking some inspiration from her - if not in the looks department, then in the idea of her being a Summoner/White Mage. Which isn't a bad thing, mind you, it's not wrong to take ideas and mash them with your own to make something new. The big thing to keep in mind is having a reason behind it beyond "the inspiration also is that."
As such, I have a simple question for you: Why would she need to become a White Mage/Summoner? Putting aside that current White Mages are mostly the Padjali of Gridania and the Warrior of Light (because of his special snowflake-ness), what does it add to your character? Does she NEED to be a White Mage, or a Summoner, or even have any sort of combat ability at all? I know mechanically you "have" to have a combat class in the game, but in RP... it really isn't needed unless you want to have a combat-heavy character.
And, as it has been kind of alluded to, she is apparently pretty heavy on skills as it is. The weaving and goldsmithing flow narratively - it's what her parents did and she learned and honed those skills from taking over their shop after they disappeared. But where is the sudden talent for conjury and ancient arcanima coming from?
Looking at it, I might have a bit of a solution? If you absolutely want healing and "summoning" as a sort of combat kit for your character (which, again, isn't really required)... perhaps look into the Scholar? It's a healing class with a summonable ally in the Fairy. Plus, you might have a bit of a story hook as to how your character would stumble across that in Byron.
Nymian Scholars were also the nation's tacticians - and were part of why the much smaller nation was able to keep up with the powerful nations of Mhach and Amdapor. A small island nation dealing with a superior enemy force? Sounds like something the tactician of a small island nation under assault from the Garleans would want to know about! The three of them head out to the Nymian ruins, plot happens, and Yuuna ends up with the necessary soul crystal (and accompanying Fairy) to start her on that path. If you really want to play with the lore of Nym and information brought on in the Job quests - perhaps Byron could end up being more of a Nymian Marine like the quest giver in the SCH chain does.
Or, if you want to go truly off the rails some... why do you have to define your character to an existent class and/or job (single or combination). I have a character who is a Judgemaster - I use the DRK job as a "placeholder" - but he's really just a big guy who uses a big sword and yells about rules a lot. No actual Darkside stuff or anything.
So, maybe Yuuna could be... (if you have to assign a name to the "profession") a Princess class, taking inspiration from the original Final Fantasy Tactics. So she knows a few special techniques taught to the leaders of her people. Healing and supportive abilities. Then that could tie into her being "chosen" as leader of her nation - the ball is a pretense to gauge who among them has the best natural ability to learn these special techniques. And then the "actual" leading is likely done by those who aid her - such as Byron and Keiki, in this case - while she serves as a sort of symbolic figurehead and retains the special techniques of their nation.
That way, she has the skills she has learned (Weaving/Goldsmithing) and an innate talent perhaps unique to her people (the "Princess" ability) that they'd want to protect, puts the success of her nation on her staff rather than a young girl somehow also being an amazing leader... and it all flows a bit better than saying she's somehow also able to learn ancient Amdaporian and Allagan magics.
I'd also ask why she has to be a Hyur who became an Au Ra rather than just being an Au Ra to begin with... or perhaps one disguised (perhaps poorly, due to the haste of escape) as the other. Yugiri tried to pass herself off as a non-Au Ra for a while, after all.
Just thoughts.
As such, I have a simple question for you: Why would she need to become a White Mage/Summoner? Putting aside that current White Mages are mostly the Padjali of Gridania and the Warrior of Light (because of his special snowflake-ness), what does it add to your character? Does she NEED to be a White Mage, or a Summoner, or even have any sort of combat ability at all? I know mechanically you "have" to have a combat class in the game, but in RP... it really isn't needed unless you want to have a combat-heavy character.
And, as it has been kind of alluded to, she is apparently pretty heavy on skills as it is. The weaving and goldsmithing flow narratively - it's what her parents did and she learned and honed those skills from taking over their shop after they disappeared. But where is the sudden talent for conjury and ancient arcanima coming from?
Looking at it, I might have a bit of a solution? If you absolutely want healing and "summoning" as a sort of combat kit for your character (which, again, isn't really required)... perhaps look into the Scholar? It's a healing class with a summonable ally in the Fairy. Plus, you might have a bit of a story hook as to how your character would stumble across that in Byron.
Nymian Scholars were also the nation's tacticians - and were part of why the much smaller nation was able to keep up with the powerful nations of Mhach and Amdapor. A small island nation dealing with a superior enemy force? Sounds like something the tactician of a small island nation under assault from the Garleans would want to know about! The three of them head out to the Nymian ruins, plot happens, and Yuuna ends up with the necessary soul crystal (and accompanying Fairy) to start her on that path. If you really want to play with the lore of Nym and information brought on in the Job quests - perhaps Byron could end up being more of a Nymian Marine like the quest giver in the SCH chain does.
Or, if you want to go truly off the rails some... why do you have to define your character to an existent class and/or job (single or combination). I have a character who is a Judgemaster - I use the DRK job as a "placeholder" - but he's really just a big guy who uses a big sword and yells about rules a lot. No actual Darkside stuff or anything.
So, maybe Yuuna could be... (if you have to assign a name to the "profession") a Princess class, taking inspiration from the original Final Fantasy Tactics. So she knows a few special techniques taught to the leaders of her people. Healing and supportive abilities. Then that could tie into her being "chosen" as leader of her nation - the ball is a pretense to gauge who among them has the best natural ability to learn these special techniques. And then the "actual" leading is likely done by those who aid her - such as Byron and Keiki, in this case - while she serves as a sort of symbolic figurehead and retains the special techniques of their nation.
That way, she has the skills she has learned (Weaving/Goldsmithing) and an innate talent perhaps unique to her people (the "Princess" ability) that they'd want to protect, puts the success of her nation on her staff rather than a young girl somehow also being an amazing leader... and it all flows a bit better than saying she's somehow also able to learn ancient Amdaporian and Allagan magics.
I'd also ask why she has to be a Hyur who became an Au Ra rather than just being an Au Ra to begin with... or perhaps one disguised (perhaps poorly, due to the haste of escape) as the other. Yugiri tried to pass herself off as a non-Au Ra for a while, after all.
Just thoughts.