Ok, I see several answers talking about the second part of the boon allowing for the creation of a Ghibrani character in addition to the freed-personal boon character.
The part I am still a bit confused on is where it says to select a character I have with 0 xp, and they can play as a new playable race without needing to expend the personal boon slot. My question is multi-part. First, what constitutes a "playable race?" Second, does this race have to be one for which I have unlocked a boon to build?
Odd as it may sound, I am asking because I was wanting to build a little SRO character. However, I have found no such boon to unlock that race from the scenarios I have played, and it seemed that this boon (which I recently reached the level to unlock) might be the only method of doing so.