Need some help with the location of some itemsfor quests

[Gylthas]

Well, as the title says i was doing some sidequests, but i can't find the following items:
-Cursed Crab Claws, Cursed Blood
-Twilight Melancholy
-Eternal Torch
-Scorching Furnace
-Reversed Compass
-Diamond Dust

[Xenome]

Twilight Melancholy drop from Sunset Sticky monster



Reversed Compass from Beelzebub

[NinjaMH]

Diamond Dust:
Akamekabe, those who drop charcoal, found in Mount Kurama and throughout Sekigahara

[Celie]

Cursed Blood is a rare drop from the Bloodied Nyuudou (Nishidera's boss)
Cursed Crab Claws is a rare drop from the Oni-Basami (Hosuseri Shrine's boss)
Eternal Torch is a rare drop from Wanyuudou (Cave of Nakisawame as well as another dungeon in Sekigahara)

[MxnPride]

Well, as the title says i was doing some sidequests, but i can't find the following items:
-Cursed Crab Claws, Cursed Blood
-Twilight Melancholy
-Eternal Torch
-Scorching Furnace
-Reversed Compass
-Diamond Dust

I suggest doing main story quest to progress and unlock more things.