[Black Mage] Foggy Investigation
Start it with Neinheart in White Spear Deck 1.
Requirements
Lv. 200+
Quests
NPCs
Locations
Neinheart Start
Connected quests
Dialogue
Turning in the quest
Additional replies
Do you have 100 
Wicked Soul Remnants items yet? You can obtain them from Soot Beast located in Resistance Ship 1 and Resistance Ship 2.