Generic guests
| “ | I will carefully determine what guests to invite and write an invitation accordingly, and you will entertain the guests once they accept the invitation and arrive at the Library. | ” |
Guests are the various groups and people invited to the Library via the Invitations, and the enemies of the game that are fought in receptions. The guests come from various backgrounds, including Syndicates and Offices. They are lured by the Books put into the Invitations, which are often of worth or use for them. By accepting the Invitation's conditions, Guests agree to the Library's deal: If they win their reception, they can take the Books they want and leave; if they lose, they will be turned into Books themselves.
There are unique guest characters who have set names and stories as well as generic guests who have only a title rather than a name. These guests are invited both through Red Invitations, which make up the guided main story path of Library Of Ruina, as well as the supplementary General Invitations which are not part of the main story tree. For more information on General Invitations, see the relevant page.
Red Invitations[]
Canard[]
| Name | Chapter | Episodes | Books used in the Invitation |
|---|---|---|---|
 |
Chapter 1 | 1 | Book of Something |
 |
Chapter 2 | 3 | Episode 1: Book of Rats Episode 2: Book of a Grade 9 Fixer |
  |
Chapter 3 | 1 | Book of Yun’s Office |
  |
Chapter 4 | 1 | Book of the Brotherhood of Iron |
Urban Myth[]
| Name | Chapter | Episodes | Books used in the Invitation |
|---|---|---|---|
  |
Chapter 1 | 1 | Book of Taein |
  |
Chapter 2 | 2 | Episode 1: Book of Jack and Book of Pierre Episode 2: Book of Mars |
Urban Legend[]
| Name | Chapter | Episodes | Books used in the Invitation |
|---|---|---|---|
  |
Chapter 1 | 3 | Episode 1: Book of Lulu and Book of Mars Episode 2: Book of Zwei South Section 6, Book of Lulu and Book of Mars |
  |
Chapter 2.1 | 1 | Book of WalterBook of Zwei South Section 6 |
  |
Chapter 2.2 | 1 | Book of WalterBook of the Distortion |
Urban Plague[]
| Name | Chapter | Episodes | Books used in the Invitation |
|---|---|---|---|
  |
Chapter 1.1 | 1 | Book of Gyeong-mi |
  |
Chapter 1.2 | 1 | Book of Zwei South Section 6Book of the Distortion |
  |
Chapter 1.3 | 1 | Book of WalterBook of Isadora |
  |
Chapter 1.4 | 1 | Book of OlgaBook of Molar Office |
  |
Chapter 2.1 | 1 | Book of The CarnivalBook of Lobotomy Corporation |
  |
Chapter 2.2 | 1 | Book of Full-Stop OfficeBook of the Distortion |
  |
Chapter 2.3 | 1 | Book of SalvadorBook of Yuna |
  |
Chapter 2.4 | 1 | Book of AllocBook of Dalloc |
Urban Nightmare[]
| Name | Chapter | Episodes | Books used in the Invitation |
|---|---|---|---|
  |
Chapter 1.1 | 1 | Book of Kurokumo ClanBook of Sayo |
  |
Chapter 1.2 | 1 | Book of Full-Stop OfficeBook of The Musicians of Bremen |
  |
Chapter 1.3 | 1 | Book of OscarBook of Wedge Office |
  |
Chapter 1.4 | 1 | Book of Tomerry |
  |
Chapter 2.1 | 1 | Book of a Sweeper |
  |
Chapter 2.2 | 1 | Book of Yujin Book of Shi Association |
  |
Chapter 2.3 | 1 | Book of Emma |
  |
Chapter 2.4 | 1 | Book of a Puppet |
Star of the City[]
| Name | Chapter | Episodes | Books used in the Invitation |
|---|---|---|---|
  |
Chapter 1.1 | 2 | Episode 1: Book of Index Proselytes Episode 2: Book of the Thumb and Liu Association Section 2, Vol. I |
  |
Chapter 1.2 | 1 | Book of the Smiling FacesBook of the Distortion |
  |
Chapter 1.3 | 2 | Episode 1: Unstable Book of the Crying Children Episode 2: Unstable Book of the Crying Children and Liu Association Section 2, Vol. I |
  |
Chapter 1.4 | 1 | Book of WARP Cleanup Crew |
| |
Chapter 2.1 | 1 | Book of the ThumbBook of Kalo |
  |
Chapter 2.2 | 1 | Book of Lobotomy Corporation |
| |
Chapter 2.3 | 1 | Book of MeiBook of Cecil |
  |
Chapter 2.4 | 1 | Book of WARP Cleanup CrewBook of Nemo |
  |
Chapter 3.1 | 1 | Book of GloriaBook of Hubert |
  |
Chapter 3.2 | 1 | Book of the Red Mist |
  |
Chapter 3.3 | 1 | Book of ChunBook of Liu Association Section 1 |
| |
Chapter 3.4 | 1 | Book of the Rabbit TeamBook of the Rhino Team |
Impuritas Civitatis[]
| Name | Chapter | Episodes | Books used in the Invitation |
|---|---|---|---|
  |
Chapter 1 | 2 | Episode 1: Book of 얀샋ㄷ요무, Book of Xiao and Book of the Purple Tear Episode 2: Book of Harold and Book of Mirinae |
| |
Chapter 2 | 1 | Uninvited Guests
Consists of 10 different Receptions, each received by a different Floor: |
  |
Chapter 3 | 1 | Uninvited Guests |
| |
Chapter 4 | N/A | Uninvited Guests (Complete the Realization of the Floor of General Works to access this fight) |
| The Final Reception | Chapter 5 | N/A | Uninvited Guests |
