So, I’ve been trying to complete all the hidden quest that give stats, and this one is giving me a headache.
In some other posts, people say the requirements are completing all quests in Fedi suburbs, Tenet garden, Church 1B, 1F and 2F. Some other guides also say Goddess Ancient Garden, so I went and did all quests in all these maps, including the repeatables. Yet the quest still doesnt trigger for me, the only dialogue the npc gives me is this: 
The only quest in Goddess Ancient Garden I havent completed is the Runecaster master one that gives a title(Needs to have RC unlocked, and seems like RC unlock vouchers cant be used by clerics). I assume this one isnt needed because it requires an specific class unlocked, and I don’t want to unlock RC for the 8th time on my account.
I’ve followed every guide I could find and none proc’d the quest for me, I dont know what to do anymore
So I’d like to ask to anyone who has already completed this “Brother, then” quest, is there any other requirement I’m not aware of? How the hell do you get this quest to start? Thanks in advance.