Butt Detective Anime Confirms New 2027 Episodes Starting in April, With a Villain-Packed Teaser

Today is November 4, which Japanese fans of Butt Detective (Oshiri Tantei) know as "Nice Butt Day," thanks to a pun on the date. The team behind the anime marked the occasion the only way it could: by confirming that a new batch of episodes is coming in 2027, with the new stories set to start in April.

A teaser visual that looks like a case file

The new teaser visual swaps the show's usual sunny goofiness for something a little more tense. Butt Detective and his assistant Brown are scribbling in a notebook with serious expressions, while a wall of hand-drawn memos floats behind them. Those notes are a rogues' gallery: the three alphabet phantom thieves who have pushed the detective into real trouble before, Kaitou B, Kaitou Z and Kaitou N, plus Arachin and Misty, the ruin raiders that Oshiri Dandy faced back in his younger days.

The official site keeps the details close, but a line-up like that is hard to read as anything other than a hint that some familiar villains are coming back for bigger cases.

Why it is worth a look

I have a soft spot for this series. It is made for kids, but the mysteries are genuinely clever, and the visual gags are timed well. It has been a weekly TV fixture in Japan for years now. For a lot of English-speaking families it is also a sneaky gateway into Japanese animation.

There is no exact premiere date, story title or cast news yet, so for now the takeaway is simple: Butt Detective's case book stays open into 2027. You can find the announcement on the official Butt Detective anime site, and I will update you when the April episodes get a firmer schedule.

More on the series: Butt Detective on anime.day.