Volume 1: The Undead King

1. YGGDRASIL was released in the year 2126 A.D. by a highly-regarded Japanese developer.
2. YGGDRASIL ran for 12 years and ended in the year 2138 A.D. when the term DMMO-RPG became a commonality.
3. DMMO-RPG is an acronym for [Dive Massively Multiplayer Online Role Playing Game].
4. DMMO-RPG describes an interactive game in which a person can play in a virtual world like as if it's real life, by connecting a dedicated console to the neuron nanointerface — an intracerebral nanocomputer network composed from the quintessence of cyber- and nanotechnology
5. YGGDRASIL easily tops 2000 classes when both normal and high-ranking classes has been added.
6. 15 is the maximum level for most classes. 10 for high-tier and 5 for special or rare classes.
7. In order to reach level 100, a Player must have at least 7 classes.
8. It is also possible for a player to create 100 classes to reach level 100, though this method was proven inefficient.
9. "Creator Tools" which are sold separately can fully alter "visuals" such as weapons, armors, character presets, and home interiors.
10. YGGDRASIL's Lore:

    The YGGDRASIL World Tree was once covered with countless number of leaves, but one day a gigantic monster appeared and devoured these leaves. As such, the leaves were destroyed one by one, until only nine were left. However, the monster which devoured the leaves of the World Tree relentlessly pursued these remaining nine leaves. This was the background story of the game. Players would step out into the unknown and face dangers in order to protect their own world.

11. These nine leaves became the world’s predecessors:

    Asgard - home of the Aesir (gods)
    Vanaheim - home of the Vanir (old gods)
    Alfheim - home of the Light Elves
    Svartalfheim (or Nidavellir) - home of the Dark Elves (and Dwarves respectively)
    Midgard - home of the Mortals
    Jotunheim - home of the Giants
    Niflheim - the primordial world of ice; home of the Frost Giants
    Muspelheim - the primordial world of fire; home of the Fire Giants
    Helheim - the primordial world of darkness; home of the Dead (a.k.a. Underworld)
    
    Note: The description of each world isn't included in the lore. I've added them by myself. People are often confused about Svartalfheim and Nidavellir. The former is the 'realm' while the latter is just a "territory". Most parts of Svartalfheim are Nidavellir - Dwarves' territories. The rest are just territories controlled by the Dark Elves.

12. YGGDRASIL popularized the phenomenon "visual popularity".
13. YGGDRASIL and DMMO-RPG are often considered as one and the same term in Japan.
14. The selectable races in Yggrasil can be divided into 3 diverse races:

    Human, Demi-Human and Heteromorphic.

15. YGGDRASIL has a total of 700 races including high-tier races.
16. On the last day of YGGDRASIL, there were 4 online Players of Ainz Ooal Gown. These are Momonga - an Overlord and the Guildmaster, Herohero - an Elder Black Ooze and another 2 who were not specified.
17. Ainz Ooal Gown (guild) was comprised of only 41 members and never had a "betrayer".
18. YGGDRASIL has no function to change facial expressions so players utilized emoticons instead.
19. Any act rated 15+ are punishable under the Social Order Maintenance Act. The real name of the red-handed player will be posted online and his/her account will be suspended.
20. In absence of having licence, forcing players staying in a game world is classified as abduction under the abduction law. This includes forcing players to play demo without consent and being unable to "force logout" under any situations.
21. Thus, game companies are required to install a built-in program that silently records gameplay worth one week for all players.
22. Ainz Ooal Gown has 2 rules for recruitment - a working member of society, and a race of being heteromorphic.
23. Ainz Ooal Gown also follows the "majority rule" system.
24. Their guild symbol and guild weapon is the [Staff of Ainz Ooal Gown] carved with a motif of the Greek god Hermes' caduceus and entwined with 7 serpents with 7 different colorful jewels held on each serpents' mouth. In the Anime, Staff of Ainz Ooal Gown is on par with a World-class item.
25. If the guild weapon is destroyed, the guild would dissolve.
26. Ainz Ooal Gown was ranked 9th out of 800+ guilds during their golden period, rank 48th when at their lowest and rank 29th before the game service ended.
27. Items and armaments in YGGDRASIL were classified according to their data size. The greater the data, the higher the grade of the item or armament: (ascending)

    Lesser - Minor - Medium - Major - Greater - Legacy - Relic - Legendary - Divine - Super/Cash/Guild Weapon - World

28. The "Great Tomb of Nazarick" is located in "Helheim".
29. The official translation of The Great Tomb of Nazarick is "Underground Large Grave of Nazarick".
30. The Great Tomb of Nazarick has 10 floors and each floor is guarded by a floor guardian:

    Floor 1~3 ─── Catacombs (Shalltear Bloodfallen)
    Floor 4 ─── Underground Lake (Gargantua)
    Floor 5 ─── Glacier (Cocytus)
    Floor 6 ─── Jungle (Aura Bella Fiora & Mare Bello Fiore)
    Floor 7 ─── Underground Volcano (Demiurge)
    Floor 8 ─── Wilderness (Victim)
    Floor 9 ─── Royal Suite
    Floor 10 ─── Throne Room (Albedo as Overseer)

31. In YGGDRASIL, a player will lose experience equivalent to 5 levels and drops 1 equipped item upon death.
32. For players who wants to resurrect, there are ways to reduce the penalty by using special items or by casting special skills like [Rebirth]
33. If a player, upon successive deaths, reaches level 0 he will automatically resurrect at level 1 due to system protection.
34. To resurrect an NPC, the guild needs to pay a resurrection fee which scales to the NPC level.
35. The Great Tomb of Nazarick overcame the largest player-organized military offensive in the server's history. An alliance of 8 guilds, guild affiliates, mercenary players and NPC mercenaries, numbering a total of 1500 tried to raid their guild and were annihilated. This event has turned into a legend. In WN, 1/3 (or 500) of this invasion consists of level 100 players.
36. This legendary event caused a massive influx of rage players swarming the company's forum enough to cause a DDOS. These players complained that Nazarick was using a cheat but the game admin denied such accusation and announced that Nazarick's defense is legit and clean.
37. Thus, the Great Tomb of Nazarick was labeled as an impregnable fortress and rose to rank 1 in terms of guild defense.
38. It seems that Aura, Mare and Shalltear died during the invasion.
39. "In the Nazarick, there are only 9 NPCs who are level 100, with one exception."
40. "Friendly-fire" is disabled in the New World.
41. Each day Momonga can summon 4 high tier undead, 12 mid tier undead ans 20 low tier undead.
42. YGGDRASIL's magic system goes from 1st to 10th tier.
43. There are over 6000+ spells available in YGGDRASIL.
44. In general, Level 100 Players can usually use 300 spells.
45. Momonga can use a total of 718 spells.
46. During Momonga's experiment (or rather training) with Aura and Mare, the following monsters were summoned:

    Moonlight Wolf (Lv20)
    Dragonkin (Lv55)
    Primal Fire Elemental (Lv85+)

47. After 99 tries, Momonga gave up using [Message] and sending it to all 40 members of the guild.
48. Momonga unknowingly activated [Desperation Aura V] during the roll call of the Floor Guardians.
49. When Sebas Tian reported his findings about Nazarick's surrounding, Ainz asked him if he saw "something like a sky-castle".
50. In YGGDRASIL, the surrounding area of Nazarick is a large poisonous swamp home to a frog-like monster called "Zwick". In the New World, the surrounding 1-kilometer area had been changed to a grassland.
51. Momonga does not have any family, friends, or girlfriend in the real world.
52. Momonga has a magical item called [Unlimited Kettle] which never runs out of water.
53. Momonga undergone relentless PVP/PKs to the point of quitting the game but was saved Touch Me.
54. They then started to build the guild. The first 9 members were called "First Nine".
55. There are two types of guardians in Nazarick: "Floor Guardian" and "Area Guardian".
56. NPCs that were given proper names but lacks substantial information:

    Akaira
    Gelante

57. In Nazarick, there are 4 NPC who specialized in close quarter combat:

    most proficient weapon user, Cocytus
    most impeccable defense, Albedo
    most combat strength, Sebas Tian
    unknown, Rubedo

58. Mare used lots of mud to hide Nazarick's wall from the outside.
59. After reaching level 100, Momonga accumulated a lot of STR points through training.
60. By killing a monster in YGGDRASIL, it would drop a [Data Crystal]. This crystal could be attached to items afterwards. Countless original items could be created by this way.
61. When Momonga picked up an engraved silver sword for the first time, he swung it as if it was made of feathers. But when he assumed a stance, the sword fell to the ground.
62. The jet black armor that Momonga has been wearing was made using [Create Greater Item]. It is a magic-based armor.
63. Despite being a magic-based armor, Momonga can only cast 5 different spells while wearing it.

    - Desperation Aura I to V (effect varies from skill level; effect ranges from inflicting fear to causing instant death)
    - Perfect Warrior (transform the user to a Warrior-class while retaining his total level; it can also bypass any class restrictions on equipments even for example, a World Champion)

64. There are also certain skills that allows a player to cast magic while wearing armor but Momonga did not learn one.
65. Demiurge's Demon Generals have 3 types:

    Demon of Wrath, Demon of Jealousy and Demon of Avarice (or Greed)

66. The Demon Generals are all level 80.
67. Supreme Beings have a special aura that enables NPCs to distinguish them even while using a disguise.
68. On the 4th day of Nazarick's arrival to New World, Carne Village was attacked by Imperial soldiers.
69. Nazarick has an intruder detection security network.
70. In YGGDRASIL, PVP means "Player versus Player"; PVE means "Player versus Enemy"; PK means "Player Kill/Killer"; and PKK means "Player Killer Killer".
71. Ainz Ooal Gown is a PVP/PK-oriented guild.
72. The [Ring of Ainz Ooal Gown] has exactly 100 copies. Ainz holds 1, 40 were given guild members, 1 to Mare, 1 to Albedo and 1 to Pandora's Actor. Remaining rings: 56
73. Carne Village is located approximately 10 kilometers away from the Great Tomb of Nazarick.
74. When Momonga saw the village people running in and out of their house early in the morning, he asked Sebas Tian this question - "...Are they organising a festival?" (evil lol)
75. Death Knight whose level is 35 has strength comparable to a level 25 and defense to a level 40 monster. It has 2 important skills: "taking the enemy aggro" and "resisting 1 lethal attack" (usable while certain HP is still left). In addition, enemies slained by it will turn into "zombie slaves".
76. Death Knight is Momonga's favorite shield among his undead summons.
77. [Infinite Backpack], despite it's name, can only hold items of up to 500 kilograms.
78. On his last moments, Enri Emmot and Nemu Emmot's father muttered, "Please save my daughter..." while looking through the [Mirror of Remote Viewing] and locking eyes with Momonga as if he can see him.
79. When fighting against level 100 players, Momonga only used 8th tier magic and above.
80. The red potion Momonga gave to Enri is called [Minor Healing Potion]
81. In YGGDRASIL, Minor Healing Potion recovers 50 HP.
82. Momonga gave 2x Horn of the Goblin General to Enri. A single horn can summon 1x Goblin Troop:

    12x weak Goblins, 2x Goblin Archers, 1x Goblin Mage, 1x Goblin Priest, 2x Goblin Wolf Riders and 1x Goblin Leader (19 in total)

83. Momonga changed his name to Ainz Ooal Gown.
84. Ainz (from here onwards) equipped 2 items to hide his skeletal figure: [Mask of Envy], a Barong mask (which has no effect at all) Momonga won during a Christmas event and an [Iron Glove] which increases strength.
85. Ainz casted the following spells during the events in Carne Village:

    [Grasp Heart] (9th tier), [Dragon Lightning] (5th tier), [Raise Death Knight], [Anti-Life Cocoon], [Wall of Arrow Protection], [Fly], [Negative Burst], [Hellfire], [Black Hole], [Anti-Information Magic Wall], [Burst]

86. The following are names of some of the Imperial knights (disguised Slane Theocracy knights) who attacked Carne village:

    Ilian, Rilick, Ditz, Ditz, Londes Di Clamp, Belius (Captain)

87. Aside from being able to bypass his physical needs, Ainz also has a passive psyche stabilizer which maintains his mental and emotional level at all times. Ainz will quickly regain composure and balance when a strong emotion hits beyond a certain threshold.
88. Ainz had to use gigantic amount of MP just to change 10 seconds worth of memories. The name of the spell used was [Control Amnesia], 10th tier magic.
89. Ainz' real name is "Suzuki Satoru".
90. There are 2 types of currency in YGGDRASIL: a coin engraved with a "male profile" (old), and another with a "female profile" (new).
91. Both have the same value and only their engraving was changed. The latter was released after the update - [Valkyrie's Downfall] had been patched.
92. Based from village chief, 1 YGGDRASIL gold coin = 2 New World gold coin.
93. There are 3 neighbouring countries around the village:

    Re-Estize Kingdom (West)
    Baharuth Empire (East)
    Slane Theocracy (South)
    Azerlisia Mountains (Between the East and West)
    Great Forest of Tob (South of the mountain range)

94. Ainz evaluated Nazarick's fighting force that if 30 level 100 attacked them, he should be able to easily destroy them.
95. It is said that Ainz can activate "Nazarick's maximum strength" but it will consume EXP each time it's used.
96. It seems that people of the New World ate some kind of food called [Translation Konjac] which auto-translate words spoken regardless of race or language used.
97. Ainz wanted to use Resurrection Wand to bring back the villagers but changed his mind because it would be strange if a stranger could revive someone out of nowhere.
98. In YGGDRASIL, summoned monsters expire after a period of time unless you use a special method of summoning.
99. In NW, summoned monsters stay indefinitely if you use a corpse as medium.
100. Led by Aura and Mare, 400 NPCs including 15 Eight-edged Assassins served as a backup force outside the village.
101. There are 6 religious factions or divisions in Slane Theocracy. They are called the [Six Scriptures] and each had their own duties and specialization.
102. One faction worship one god. There are 6 gods in total called the [Six Great Gods].

     [Black Scripture] - Slane Theocracy's strongest faction. Mostly made up of fighters with heroic level. They also have members who are called "God-kin" (a.k.a. Demi-Gods). They have 2 mission: deal with the upcoming resurrection of Catastrophe Dragon Lord; and protect the divine artifact "Bewitching Calamity" (a.k.a. [Downfall of Castle and Country]).
     
     [Sunlight Scripture] - specializes in extermination of demi-humans. They have less than 100 members. Each member can cast 3rd tier Holy magic. They are said to be the "cream of the crop". Their captain is Nigun Grid Luin. Their mission is to assassinate Gazef Stronoff, Kingdom's strongest warrior.
     
     [Windflower Scripture] - specializes in intelligence gathering and covert operations. Their mission is to capture the traitor who stole the Miko Princess' divine artifact (later known as [Crown of Wisdom])
     
     The other 3 are currently unknown.

103. The Kingdom were split into 2 factions:

     King's faction (Royal Faction) and Noble's faction.

104. It is said that the nobles have a secret connection with various foreign countries including the Empire and Slane Theocracy.
105. The nobles pressured the king's side to not allow Gazef bring any of the Kingdom's "Five Treasure" which eventually led to a death trap. They Kingdom's Five Treasures are:

     [Gauntlet of Endurance] - grant its bearer endless stamina
     [Amulet of Immortality] - grant regeneration
     [Guardian Armor] - grant immunity to instant-death attacks
     [Razor Edge] - slice an armor as if the user is cutting paper
     The last one is currently unknown.

106. Nigun resented Blue Rose (specifically Lakyus) for leaving him a scar on his face.
107. The items left by the Six Great Gods were called "divine artifacts" or "sacred treasures".
108. In NW, there were three magical items that held unimaginable power:

     - A treasure left behind by the Eight Greed Kings 500 years ago. Later named as [Nameless Book of Spells] which records all spells in the world, even the newly created ones. It also serves as a clue for the existence 10th tier magic.
     - A hidden tool created by the magic of the highest ranking Dragon Lord before the advent of Eight Greed Kings.
     - A treasure left behind by the Six Great Gods 600 years ago. It is considered as the basis of Slane Theocracy's doctrine.

109. Martial Art is the so-called "Warrior's Magic".
110. A warrior like Gazef can use up to 7 different martial arts at same time.
111. It appears that Gazef has 2 more martial art which are stronger than [Sixfold Slash of Light]
112. Gazef used the following Martial Arts:

     [Sixfold Slash of Light], [Fourfold Slash of Light], [Full Throttle], [Instant Counter], [Focus Fighting Power], [Body Strengthening], [Mental Enhancement], [Enhanced Magic Resistance], [Magical Weapon Enchantment]

113. Ainz deduced that there are other players in Nw since the world lacks the concept of Christianity yet they summon beings like Archangel. They also look similar to Archangel Flame back in the game although they seem smaller in size.
114. Nigun and his men summoned the following angels:

     Archangel Flame, Principality of Observation, Dominion of Authority

115. The hierachy of angels in Christianity: (read from bottom-right to top-left)

     1st Sphere – Seraphim, Cheribum and Thrones
     2nd Sphere – Dominions, Virtues and Powers
     3rd Sphere – Principalities, Archangels and Angels

116. Ainz said that he needs to fight at full power against an angel of Seraphim rank - High Seraph or higher.
117. A Seraph Empyrean has been hinted to be level 100.
118. Nigun exclaimed that Dominion of Authority alone killed a Demon God 200 years ago.
119. An item called [Crystal Magic of Sealing] (or simply [Sealing Crystal]) can be used store variety of spells and cast it for later use.
120. Once the spell is used, the user can proceed to re-seal the spell again.
121. Slane Theocracy thought that Dominion of Authority is the highest level Angel simply because it can cast a 7th tier spell, [Holy Smite]. Even large scale rituals weren't able to produce the same magic tier.
122. The highest magic that people in NW managed to achieve is tier 6.
123. In Nigun's knowledge, only few were able to be on par with Dominion of Authority:

     Six Great Gods
     Dragon Lord
     Legendary monster, Landfall
     Demon God

124. Someone from Slane Theocracy was monitoring Nigun.
125. Nigun and the rest the of the Sunlight Scripture were sent to Frozen Prison of Nazarick and were subjected to information gathering led by Neuronist Painkill
126. The ring that Ainz gave to Gazef was a cash item or rather a consolation prize that could swap the user and the wearer's position.
127. Ainz was jealous of Yamaiko because he spent countless 500 yen (his entire year end bonus) trying to get a super rare item (Shooting Star) on a gachapon yet she'd obtained it on her first try.
128. In YGGDRASIL, it was possible to judge the strength of an enemy based on the color of their names.
129. Out of all Nazarick's NPC, only Shalltear can instantly travel across different floors without the Ring of Ainz Ooal Gown by using her spell [Gate].
130. Albedo insulted Shalltear by calling her a "lamprey".
131. In YGGDRASIL Players can't create 2 characters at the same time. However, they could quit the game and start from scratch by creating a new character.
132. Momonga means "flying squirrel".