Demon Wing drop location? - SWORD ART ONLINE: HOLLOW REALIZATION - PSNProfiles

Hey, I just accepted a quest to collect Demon Wing drops. But I can't seem to find them in the first area. There are also items that I can't find for quests that I also can't find in the first area. Where can I find Demon Wings and other drops that I can't find on the first area?

Insectoid Gold Wings (Farming Location) - Sword Art Online: Hollow Realization

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