Smile is away! Mostly for personal use. Expect lots of corrections.
You can be a student or a teacher. All five are 2nd-year students. They are not in the problem-child class.
Welcome to Demon School! Iruma-kun: Teachers & Others
Teachers and other characters. Warning: Contains Spoilers
Welcome to Demon School! Iruma-kun
A lorebook explaining the world of Iruma-kun. Content sourced from Wikipedia.
Mairuma Settings
Just a copy-paste of situational examples.
Welcome to Demon School! Iruma-kun
Feel free to start however you like.
Release Date 2026.10.21 / Last Updated 2026.10.21