oh wait my bad i switched tori and lovisa. i meant lovisa.^^I'll suggest in discord to redo applicants to something like this one below since this is a pretty common question.
View attachment 4135357
Tori is technically new but I get your point. I do wish she has a [Give Massage] option though to make her unique or rather there is an option for you to ask NPCs for a massage to restore stamina and Tori is just the best fit at it (giving bonus stamina restored). Rachel has an early game role: she is the best NPC to put in Golden Dragon's performer task without any training since she is designed to clear all the requirements of Golden Dragon. She does not have a bonus for it though. I'll try to think of something to suggest for how that would look like. I did ask for Loren to have a trait that gives her bonus damage to beast-like enemies. Gives her some flair. Lastly, unique traits earned by unique NPCs after completing their dedicated quests is a great avenue and has been suggested before. Would be great to see it implemented for others (Aria has one for example).
As for Adora, I do not know. I know the Head Chef code entry has no mention of Adora but it is entirely possible that it's located in a separate code entry.
the unique trait for npcs with story quests would be cool since they are also the npcs that have the most work put into them. i personally want to give them special treatment because i feel like if a dev puts work into a character it would be nice to not just have them as some deposable pawn like the auction generated npcs.