Drop everything and look at the trailer first — then come back. The Dark History of the Reincarnated Villainess: Yomi, Jealousy, and a Birthday / Iana and Sol's Feverish Day debuts April 3, 2026 from Studio Deen. 1 eps, comedy. The opener moves with the kind of confidence you don't usually get in episode one.
The premise
Bundled with the 18th volume of the manga. Covers the Yomi to Shitto to Tanjoubi (Yomi, Jealousy, and a Birthday) and Iana to Sol Netsuppoi Ichinichi (Iana and Sol's Feverish Day) story from the Short Story Collection. It's the kind of premise that sounds tidy in two sentences and gets weirder on screen — in a good way. Stick around past the cold open.
Production notes
Studio Deen's on the line, with Half H.P Studio on the committee. Their recent ledger is the thing flagging this as more than spring filler — the storyboards on the opener show actual budget, not contractual minimum.
Calendar slot
weekly broadcast TBD. Episode count: 1. Same-day simulcast windows are on the usual Western streamers — check your local Crunchyroll, HIDIVE, or Hulu listing for the timed slot.
The case for it
Sitting at 6.94 with 2,241 early scorers. The signal isn't peak hype — it's retention, which is the metric that actually matters when you're picking what survives your rotation. Worth the time. The season has louder names; this is the one you'll be quoting in August.