The Apothecary Diaries Season 3 Trailer Is Here — Yorushika Sings the Opening and Maomao Has a New Rival

Maomao is back, the poison is flowing, and the imperial palace just got a whole lot more complicated. The Apothecary Diaries Season 3 dropped its main trailer and key visual — and fans of the anime’s sharpest heroine have a lot to unpack. The new trailer didn’t just show off gorgeous animation; it confirmed the premiere date, revealed a massive J-pop tie-in, and introduced a brand-new mystery that’s about to test the palace’s favorite apothecary like never before. If you thought Season 2 was chaotic, you haven’t seen anything yet.

October 2 Can’t Come Soon Enough

The Apothecary Diaries Season 3 officially premieres on October 2, 2026. The main trailer and key visual drop the bombshell that the season will directly lead into the upcoming The Apothecary Diaries movie, which hits Japanese theaters on December 11 with an original story written by light novel author Natsu Hyuuga herself. And for fans who can’t get enough, the second cour of Season 3 is already scheduled for April 2027. Yes, the studio is locking in an entire year of court intrigue, medical puzzles, and Maomao’s legendary side-eye.

Yorushika Is Singing the Opening

Here’s the part that made the anime and J-pop sides of the internet crash into each other: the opening theme, “Kumo wo Nuke Kazashimo e Watashi Dake”, is performed by Yorushika. The duo of n-buna and suis has become one of the most beloved acts in Japanese music, and their first major anime tie-in partnership is a cultural event in its own right. Given how many viral anime openings have come from J-pop superstars lately, this pairing is already being called one of the most anticipated OPs of the fall 2026 season. The trailer previews the song alongside stunning palace visuals, and it sounds exactly as haunting and beautiful as you’d expect.

A New Mystery: Who Is Bai Niangniang?

The trailer also introduced a wild new piece to the puzzle: Reina Ueda joins the cast as Bai Niangniang, a mysterious “immortal maiden” who has become the subject of rumors around the capital. Anyone who knows The Apothecary Diaries knows that when a strange woman starts making the rumor rounds, Maomao’s curiosity is going to drag her straight into danger — and likely into the path of someone powerful. Ueda is a massive get for the series, and her character’s arrival sets up what could be Season 3’s most gripping arc.

A Dream Team Behind the Scenes

Studio OLM returns to handle animation production, led by director Akinori Fudesaka. One notable shake-up: TOHO animation STUDIO is absent from the staff credits this time around — a change fans are already debating. The music side is stacked, with Satoru Kosaki, Kevin Penkin, and Arisa Okehazama all on board. Meanwhile, alongside the key visual, new character visuals were released for ten main characters, including series favorites Maomao, voiced by Aoi Yuki, and the ever-smooth Jinshi, voiced by Takeo Otsuka.

Why This Season Matters More Than Ever

The Apothecary Diaries has quietly become one of the biggest anime franchises of the decade. The light novels by Natsu Hyuuga, illustrated by Toko Shino, anchor a series that spans two manga adaptations — one by Nekokurage, another by Minoji Kurata — plus an English release via J-Novel Club and a manga published by Square Enix. With a movie coming in December and a second cour in 2027, Season 3 is the keystone holding the whole empire together. If the trailer is any indication, Maomao’s quiet genius is about to get a much louder spotlight.

Looking for more anime updates? Check out what we thought of Frieren Season 3’s big Anime Expo update, why Dandadan is still the internet’s favorite chaos magnet, and the Blue Box Season 2 trailer that’s making romance fans sweat.

What do you think?

Are you hyped for The Apothecary Diaries Season 3? Is a Yorushika opening enough to make it the best OP of fall 2026, or are you more curious about Bai Niangniang’s mystery? And what do you think about TOHO animation STUDIO stepping back from production? Drop your hot takes, theories, and predictions in the comments — Maomao would want to hear all of them (and probably judge you for it).