This keeps popping up as a daily from the Black Spirit even though I have done all the subsequent quests and have the highest tier necklace from the quest turn-ins. Kind of annoying, but also a free tiny bit of contribution EXP just from talking to Bianstimi. The necklace is also not that great considering you have to get around 3,000 kills total going back and forth from Trent to Calpheon. Especially considering that a much better neck (https://bdocodex.com/cn/item/11646/) drops at a pretty high rate from Treants which you have to kill in the first part of these quests.