Hm, hm... Let's see...

1) <Given her age, Sera would've had to been younger than 7 yhears old when the Royal Family picked her up, as you stated she was educated, trained and cared for for a time prior to the princess being born, and Sera is only 7 years older than Solia. This is not an issue in and of itself, I just found it ... strange?

2) If the Royal Family entrusted Sera with the duty of protecting the Princess, she would have had to join the Royal Guard and become an official member of it. If she was to remain as just an 'adopted daughte of the Royal Family', she would technically be a Princess - but seeing as she has no blood-ties to the family, and no claim to the throne - or anything else for that matter - that isn't really a viable option. Hence, she would have to have a title and official post in order to be allowed to carry out her duty.

3) I said this earlier in the OOC, but weapon specialization means SPECIALIZATION. Pole-arms and swords is too broad, for you don't use a bardiche the same way you use a spear, and you don't use a short sword the same way you use a zweihander. Please specify what weapons, exactly, she is trained with.

4) Not sure how familiar you are with Dog Days, but remember that War-games are non-lethal - just saying this since you specifically mentioned that your Special Attack causes wounds, which it would only be able to do in low/no-Frala zones. Again, this is not something that needs editing or changing, just mentioning this for safety reasons.

Aside from these tidbits, it looks just fine. Fix the tiny smidgeons and we'll get Sera ready to jump into the IC as well. :)