Oki to whoever havent found out yet, Qline stats in Chrysalia : Sanctuary of Balance,
some stupid "run to rorazan, run back to chrysalia" couple times and u get quest to gather Proof of Protections, at least this time not world bosses, but need 30x and need to wait 1 hour after each

Most likely there will be follow up quest, as quest reward only shows Exp + Tp, not like Courage Test reward "Proof Of Progress". Feel free to correct me, if I'm wrong
Edit:
Ok so after those 30 x things, there are just simple talk to quests, one quest to go to South of TB+ Harbor in castle and u get the skill from dragon eventually, no silly "kill stuff X".
Can be closed I suppose.