Welcome to Demon School! Iruma-kun — Season 4

Iruma and the Misfit Class face their biggest challenge yet as they prepare for the Music Festival, where all thirteen students must reach Rank 4. With a mysterious classmate who cannot afford to stand out, the group must find a way to succeed while keeping his identity hidden. As Iruma's life in the Netherworld grows increasingly eventful, he encounters new demons, unexpected challenges, and opportunities that push him closer to the heart of demon society. From the Music Festival and its aftermath to the Dinner of the Thirteen Crowns and the glamorous Dem-Dol Games, Iruma's friendships, ambitions, and growing reputation continue to shape his extraordinary journey.