Putting this on your radar now so you're not the one playing catch-up in week three: Oshiri Tantei 10th Season drops April 4, 2026. Toei Animation handles the production, ongoing run, and the picture book it adapts has a reputation worth taking seriously.
The premise
Tenth season of Oshiri Tantei. Whether you've read ahead or you're going in blind, the early pacing makes both paths work. Don't read too far before episode three — the adaptation pulls a structural trick that's better fresh.
Studio side
Toei Animation runs production. They're the kind of studio where the storyboarding lead is the byline that should reassure you, not the director-on-marketing-rounds.
Broadcast
Saturdays at 09:00 (JST). Ongoing run, episode count TBC. Same-day simulcast windows are on the usual Western streamers — check your local Crunchyroll, HIDIVE, or Hulu listing for the timed slot.
Should you actually watch
Too early for a meaningful MAL number, but the conversation around the source has been steady. This is the kind of show you flag now and look smart about later. Slot it. Worst case you drop it episode four with a story still worth telling someone about.