Quick answer
Welcome to Demon School, Iruma-kun (*Mairimashita! Iruma-kun*) Season 4 has released a second main promo video unveiling additional cast and music. The fantasy-comedy returns for a fourth season; the exact streaming platform for the new season is still being confirmed.
Why the fourth season matters
Few comedy-fantasy shows reach a fourth season without a steady fanbase, and Iruma-kun's Netherworld cast keeps expanding rather than thinning. A second promo this detailed signals the production is well into the runway.
What the promo adds
More cast and music reveals on top of the first promo. The footage focuses on returning faces, the standard pre-season rhythm for a continuing series.
Where this leads
See where Seasons 1-3 land on SenpaiRanks' Consensus and Quality boards, then rate them to set your baseline before the new run. For everything else airing, our what to watch this season guide is the shortlist.