Extra: Rimuru's Glamorous Life as a Teacher, Part 1

`Extra: Rimuru's Glamorous Life as a Teacher, Part 1 (外伝: リムルの華麗な教師生活 その1) is the third OAD of the anime adaptation of That Time I Got Reincarnated as a Slime.

Synopsis
Rimuru, who is teaching Shizu's students as a substitute at the Kingdom of Ingrassia's Freedom Academy, takes part in an orientation in actual field combat in the school's annual outdoor training event. Transfixed by the prize he gets if he wins, he accepts a challenge by the teacher Jeff. However, an enemy appears before the students...

Summary
Information to be added later on.

Characters
MAIN: BRIEF APPEARANCES/CAMEO: RETURNING CHARACTERS: NEW CHARACTERS:
 * Rimuru Tempest
 * Great Sage
 * Shizue Izawa (Mentioned)
 * Spirit of Light (Flashback)
 * Ramiris (Flashback)
 * Chloe's Spirit (Flashback)
 * Benimaru
 * Souei
 * Souka
 * Hakurou
 * Gobta
 * Rigur II
 * Geld
 * Myrd
 * Dord
 * Gabiru
 * Vesta
 * Haruna
 * Hobgoblins/Goblinas
 * High Orcs
 * Dragonewts
 * Kenya Misaki
 * Ryota Sekiguchi
 * Gale Gibson
 * Alice Rondo
 * Chloe Aubert
 * Ranga
 * Shuna
 * Shion
 * Rigurd
 * Kaijin
 * Kurobe
 * Garm
 * Count Guratol
 * Ulamuth
 * Gesdar
 * Jeff
 * Tiss

Locations

 * Kingdom of Ingrassia
 * Freedom Academy
 * The Town of Guratol
 * Mansion of the Domain Lord, Count Guratol
 * Jura Tempest Federation
 * Rimuru City
 * Sealed Cave

Trivia

 * This OAD is bundled with the special edition of Manga Volume 14.
 * This is an anime original episode as it does not adopt any material from the Light Novels and the Manga.
 * This episode is written by Fuse, the series original author.
 * This episode is set during the events of Light Novel Volume 4: Human-Monster Interaction (Manga Chapters 40-55/Anime Episodes 20-23).
 * This episode, along with OAD 1 and OAD 2, premiered at a special screening event held at Tokyo's Marunouchi Piccadilly theater featuring a special talk with Miho Okasaki, Chikahiro Kobayashi, Azusa Tadokoro, and Ayaka Asai the voice actors for Rimuru, Ranga, Chloe, and Kenya respectively.