DCMs Guide XD

Copy and paste ftw XD
Cathedral Of Shadows
Home 3 - Kodama, Pixie
Babel - Poltergeist, Nozuchi, New moon - Cu Chu Lain (80k), 3/8, 5/8 - Hel (85k)
Protopia - New, Half - Senri, Mot (200k), 1/8 - Chernobog(110k), 2/8,3/8 - Sleipnir (110k), 5/8 - Senri, 6/8 - Queen Mab(100k), Full - Hayagriva(100k)
Shorouzan - Gaki, Mou Ryou, 7/8 ASC - Quazoceotl, Okunikushi, Loki, Full Moon - Aquans, Loki (120k), Surt(135k), Okuninushi(110k), Quazoceotl(100k)
Arcadia - Angel, Apsaras, Full - Aquans, New - Sati (100k), Camazotz (120k), Odin (130k), Uriel (150k), 1/8 Moon- Sati (100k), Camazotz (120k), Odin (130k)

Yagiya
Ground Camp - New - Ghandarva, Full - Bucca Boo
Suginami Bronze - Ertrys
Suginami Silver - Shiisaa
Suginami Express - Full - Lillim(5k), New, 1/8 - Black Ooze (3k)
Nakano - New - Kelpie, Full - Bicorn
Shibuya - New, Full - Knocker
Ceru Bronze - Aeries
Ceru Silver - Hathor
Ceru Express - 6/8 ASC - Onkot(3k)
Shibuya Quarz Bronze - Feng-Huang(Hou-ou), Ertrys, Aeries, Hathor, Shiisaa
Shibuya Quarz Express - 7/8 - Elf(3k)

Saint Germain (NPC in Shinjiku)
(shop is available only if you have ocultism quest completed, and aquired synthesis chain)
1/8, 7/8 - Lamia
2/8, 6/8 - Nandi
3/8, 5/8 - Qillin
Half - Eligor
New - Yata Garasu

Shohouzan Wars
10 awards - Pa Bil Sag, Nidhogger
100 awards - Kali
Lotery - Pa Bil Sag, Nidhogger, ?Valkyrie?

Arcadia Wars
Lotery - Pa Bil Sag, Virtue
10 awards - Pa Bil Sag, Virtue
100 awards - Dominion

G1 Trials
Suginami
600 seals - Troll
900 seals - Power
Ceru
600 seals - Kopa Tengu
900 seals - Power
Shibuya Quarz
600 seals - Harpy
900 seals - Power
Ichigaya Camp
600 seals - Momunofu
900 seals - Power

Confirmed drops (demons, that drop their own memory)
Aello
Archangel
Apis
Azumi
Bai Ze - Giant Bai Ze (ichigaya field boss)
Black Ooze - Nightmare Black Ooze
Blob
Caith Sith - Caith Sith, Unseasoned Caith Sith, Turbulent Incantation of Caith Sith (big kitty)
Cerberus - Nightmare Cerberus (Sugi Gold), Deformed Cerberus
Co.ckatrice
Chatter Skull - Nightmare Chatter Skull (Ichi gold)
Choronzon
Datsue Ba
Dwarf
Fenrir - Nightmare Fenrir (Sugi Gold), deformed Fenrir
Furiae
Ganesha
Garm - Garm, Unseasoned Garm
Hua Po - Hua Po (only shibuya), Adept Hua Po
Unseasoned Inugami
Jack Frost - Jack Frost, Unseasoned Jack Frost, Rainbow Victory Jack Frost, Deformed Jack Frost, Nightmare Jack Frost
Jack O'Lantern (Pyro Jack) - Pyro Jack, Adept Pyro Jack
Kikuri-Hime - Kikuri-Hime Boss (Ichi Bronze), Nightmare Kikuri-Hime (Ichi Gold)
Legion - Boss Legion (suzaku cavern bronze)
Oberon - Oberon, Unseasoned Oberon (shibuya quarz)
Onmoraki - Onmoraki, Deformed Onmoraki
Oni
Phoenix
Principality
Sarasvati - Sarasvati (ichi comp hack only)
Slime - Unseasoned Slime
Spector - Nightmare Spector
Tan-Ki
Titania - Titania (ichi comp hack only)
Turdak
Will 'O' Wisp
Yakka
Yomotsu-Shikome - Yomotsu Shikome (Ichi comp hack only)

Other drops (demons that drops others memory)
Artemis - Boss Slime (Shinjiku comp)
Baphomet - Boss Slime (Shinjiku comp)
Bishamoten - Yaksa (boss guard ichi gold)
Cu Sith - Boss Oberon (H3 comp)
Furiae - Boss Furiae(shibuya quarz)
Inugami - Boss Oni (groundcamp comp)
Jikokuten - Ghandarva (boss guard ichi gold)
Koumokuten - Pissaca (boss guard ichi gold)
Mothman - Mini-Boss Ortrus (sugi gold). Mini-Boss Cerberus (sugi gold)
Ogre - Boss Hathor(Ceru bronze)
Omoikane - Boss Slime (Shinjiku comp)
Taraqsue - Boss Odin (ceru silver)
Yaksini - Boss Arahabaki (ichi silver)
Zouchoten - Kumhanuba (boss guard ichi gold), Gaki (boss guard ichi gold)

Negotiaion Gift
Alp - Alp
Dis - Dis
Ghoul - Ghoul
Isora - Isora
Naga - Naga, Unseasoned Naga
Slime - Unseasoned Slime

Quest Memory
Angel - quest Lucky Days from girl in arcadia (near entrance)
Archangel - card maniac (h3 terminal) quest, reward for messian traesto
Caellano - card maniac (h3 terminal) quest, reward for messian traesto
Coc.katrice - card maniac (h3 terminal) quest, reward for gaian traesto
Datsue Ba - card maniac (h3 terminal) quest, reward for gaian traesto
Flamies - card maniac (h3 terminal) quest, reward for gaian traesto, reward for mesian traesto
Gaki - quest from priest Nigon in Shorouzan
Hua Po - quest from DB near teminal in Shinjiku
Jack Frost - quest Troubled pixie from pixie before H3 entrance
Karasu Tengu - card maniac (h3 terminal) quest, reward for gaian traesto
Kodama - quest in H3 cathedral from memory seller (can't recall name of quest)
Kushinada Hime - card maniac (h3 terminal) quest, reward for gaian traesto
Macha - junkerman quest, reward for knocker with dia
Nekomata - junkerman quest, reward for knocker media
Ocypete - card maniac (h3 terminal) quest, reward for messian traesto
Pixie - quest in H3 cathedral from memory seller (can't recall name of quest)
Principality - card maniac (h3 terminal) quest, reward for messian traesto
Setanta - junkerman quest, reward for knocker media
Succubus - junkerman quest, reward for dwarf with 99 needles
Sudama - junkerman quest, reward for knocker with dia/media

Plasma
Dwarf - Shibuya (near ceru)
Fomorian - Ichigaya (NW part)
Shikigami - Suginami (near nakano entrance)
Spector - Ueno
Will'O'Wisp - Nakano
Zhen - Shinagawa

Other
Badb Catha - wooden box in catacombs bronze
Couatlicue (1k) - Accessory seller in Shohouzan, with haistyle sold in shop
Gyuki (1k) - Accessory seller in babel, with haistyle sold in shop
Jatayu (1k) - Accessory seller in Arcadia, with haistyle sold in shop
Ortrus (1k) - Accessory seller in Home 3, with haistyle sold in shop
Vetala - wooden box in catacombs bronze(new moon)
Yakka - wooden box in suzaku cavern bronze
Suzaku (Zhu Que) - treasure box in suzaku cavern bronze

chatterskull's dcm can also be bought at the yagiya express in ichi camp
zhen drops it's own dcm too
raiju and mothman's dcms are at metro but not sure if it's drop or treasure box
also othman's dcm is dropped by either nightmare cerb or orth