An official Mairimashita! Iruma-kun anthology series, featuring stories of Iruma Suzuki and friends's adventures as students of Babyls Demon School.

Chapter numbering is in order of release.

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TABLE OF CONTENTS (VOLUME 1):

CHAPTER 1 - Iruma-sama Caught On Camera!
Mangaka: Hachi (The Witch's Bloody Paintings)
Eiko and Asmodeus meet in private to share with each other some photos that they've secretly taken of Iruma.

CHAPTER 2 - I Just Haven't Given It My Best Yet
Mangaka: Saori Muronaga (All Alone in Hyakki Demon Village)
Opera laments their inability to get a good photo of Iruma, so they decide to train with Iruma in order to do so.

CHAPTER 3 - Detective Iruma Case File: The Missing Fluff
Mangaka: Nango Kouta (Kojirase Hyakki Dominor)
After playing a mystery game, Iruma and Lied get bitten by the detective bug. But when Elizabetta discovers that her tail scrunchie is missing, can Iruma Holmes and Lied Watson figure out the culprit?

CHAPTER 4 - As Expected From Kirio-senpai!
Mangaka: Shinobi (Yandere Kanojo)
A day in the life of Kirio, Iruma’s senpai who secretly has an obsession with seeing people in despair.

CHAPTER 5 - I Can't Wake Up! Iruma-kun
Mangaka: Rio (Despair Boy and China Girl)
Asmodeus and Clara come across Iruma sleeping, and compete against each other to see who will wake him up first.

CHAPTER 6 - Clara’s Seduction Challenge
Mangaka: Sako Misaki (Doki Doki Yokai Love Battle! ~ Great Yokai War!)
When Clara’s succubus mentor teaches her about enchanted chocolate that will make the consumer fall in love with its creator, Clara naturally tries to see if she can make chocolate that will make Iruma act lovey-dovey towards her.

CHAPTER 7 - Azz-kun's Devilum
Mangaka: Shimotsuki Seira (Sewaga Yakemasu Hades-sama)
Iruma and Clara ask Asmodeus what he normally does during Devilum balls.

CHAPTER 8 - Once Again... Please, Opera-san!
Mangaka: Nagi Mayuko (My Student Won't Go Back Home)
Amelie asks Opera to help her improve her cooking skills.

CHAPTER 9 - That's a Mythical Creature, Iruma-kun!
Mangaka: Yoshimatsumetsu (Akuyaku Reijo no Ani ni Tensei Shimashita artist)
Iruma’s class discusses their efforts as children to find the delicacy known as humans - while the human Iruma tries to change the subject.

CHAPTER 10 - Evade Them All! Iruma-kun!
Mangaka: Kakemaru Kakeru (Shonen Racquet)
Clara decides to put Iruma’s danger avoidance skills to the test with a massive gauntlet of traps.

CHAPTER 12 - The Irumi in Our Hearts
Mangaka: Fukui Takumi (Shuumatsu no Valkyrie writer)
Iruma’s classmates discuss the mysterious new idol Irumi who suddenly appeared at a concert beforehand.

CHAPTER 13 - Amelie's Heart-Pounding Grand Campaign
Mangaka: Sakurai Norio (Boku no Kokoro no Yabai Yatsu)
After reading shoujo manga, Amelie seeks to replicate romantic moments from them with Iruma.

CHAPTER 14 - Iruma-kun and the Cherry Blossom Viewing Party
Mangaka: Itagaki Paru (BEASTARS)
Iruma, Asmodeus, and Clara set up a cherry blossom viewing party.

CHAPTER 15 - ???
Mangaka: Heriyama (Governess Nazuna-san)

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TABLE OF CONTENTS (NO VOLUME):

CHAPTER 11 - Break them Bones! Bablys Staff
Mangaka: Kawasaki Chuu (Shuumatsu Busou Pancake writer)
The Babyls teachers participate in an arm-breaking (arm-wrestling) contest.

CHAPTER 16 - ???
Mangaka: Abekawa Kineko (Touken Ranbu Anthology ~ Preparations For Departure!)

CHAPTER 17 - ???
Mangaka: Kobayashi Moriwo (Melancholy Melancholic Melancholinist)

CHAPTER 18 - ???
Mangaka: Suzuki Iko (One Step!)

CHAPTER 19 - ???
Mangaka: Kuze Mizuki (Shuumatsu Friends)

CHAPTER 20 - ???
Mangaka: Utagawa Utako (Jitsuwa: Fukakaidan Kissa)

CHAPTER 21 - ???
Mangaka: Tatsubon (Tadokoro-san)

Chapter 22 - ???
Mangaka: Saito Michi (The Rising Of The Vibrator Hero)

Chapter 23 - ???
Mangaka: Tachibana Mizuki (Seishun Radio Pinchers)

Chapter 24 - ???
Mangaka: FUKASAWA Neji (He is popular, but he is not good at love)

Chapter 25 - ???
Mangaka: Takewakamaru (Gurenki - Creo the Crimson Crises)

Chapter 26 - ???
Mangaka: Fujino Pochomukin (Kayou Koukyuu no Hanayome)