Nobody talks about this one. It's five minutes of the cast breaking character to sell you on the actual show, except the bit IS the show, pure energy, zero plot friction, just Katarina and her accidental harem roasting each other while explaining why you should care. If you've already watched the series, it hits different. If you haven't, it's a masterclass in how to make comedy do the work of marketing.
Katarina Nounai Kaigi X is a set of 23 short comedy clips released online in 2021 through the official Twitter account of My Next Life as a Villainess: All Routes Lead to Doom! In these shorts, the "Katarina Five" take the stage to introduce the X season of the series, giving fans bite-sized promotional comedy.