Giant Ojosama Reveals Teaser Trailer With Yu Serizawa as Oriko and Junya Enoki as Dr. Sebastian

The TV anime adaptation of Giant Ojosama (ジャイアントお嬢様) has finally introduced its two central characters in motion and voice. Yu Serizawa will play Oriko Fujido, while Junya Enoki has been cast as Dr. Sebastian.

The first teaser also provides an early look at how Tatsunoko Production is translating Nikumura Q's manga to animation. Oriko drinks Sebastian's newly developed giantification formula, grows beyond the surrounding buildings and prepares to confront the massive threat attacking the city she treasures.

Quick Summary

• Official Latin / English video title: Giant Ojosama
• Japanese title: ジャイアントお嬢様
• Format: TV anime
• Source: manga
• Manga creator: Nikumura Q
• Manga publisher: Shogakukan
• Serialization platform: Sunday Webry
• Manga imprint: Sunday Webry SSC
• Serialization began: July 30, 2021
• Official Shogakukan manga genre: gag / comedy
• Core concept: giantification × ojou-sama × giant action comedy
• Latest update: first teaser trailer and main cast
• Teaser update date: September 3, 2026
• Anime broadcast window: January 2027
• Specific premiere date: unannounced
• Broadcaster: unannounced
• Streaming platforms: unannounced
• Protagonist: Oriko Fujido
• Oriko Fujido voice actor: Yu Serizawa
• Second central character: Dr. Sebastian
• Dr. Sebastian voice actor: Junya Enoki
• Oriko: daughter of the Fujido Group
• Fujido Group: described in the premise as controlling vending machines and beverages around the world
• Oriko's fourth-birthday gift: an entire town
• Oriko's connection to the town: she deeply loves both the town and its residents
• Dr. Sebastian: Oriko's butler and a researcher
• Giantification trigger: Sebastian's newly developed giantification drink
• Initial threat: a gigantic invader attacks the town
• Key teaser scene: Oriko grows large enough to burst through buildings
• Director: Hiroshi Ikehata
• Assistant Director: Katsuya Oshima
• Character Design / Chief Animation Director: Hajime Mitsuda
• Series Composition / Script: Yu Sato
• Art Setting: Takashi Hiruma
• Art Director: Hijiri Ito / Studio ARA
• Color Design: Misako Akama
• Directors of Photography: Masashi Kamiki and Yohei Konishi
• Editing: Akinori Mishima
• Sound Director: Takumi Ito
• Sound Production: HALF H・P STUDIO
• Music: Yusuke Shirato, Kijibato and Aira
• Animation Producer: Miku Kaneko
• Animation Production: Tatsunoko Production
• Released manga volumes at the time of this news: 12
• Next manga volume: Volume 13
• Volume 13 release date: September 11, 2026
• Volume 13 price: ¥770 including tax
• Volume 13 length: 192 pages
• Volume 13 ISBN: 9784098548187
• Anime status: in production for its January 2027 broadcast

Teaser Trailer and Teaser Visual

Oriko Finally Moves and Speaks

The teaser is the first major anime footage to show Oriko fully animated. She appears as the young lady of the Fujido Group who has spent years developing and caring for the town she received as a birthday present.

When a gigantic invader appears, Dr. Sebastian hands Oriko a newly developed drink. It turns out to be a giantification formula, causing her to grow until she breaks through the surrounding buildings.

The sequence immediately establishes one of the manga's defining traits: intentionally excessive scale paired with Oriko's energetic comedy.

Yu Serizawa and Junya Enoki Lead the Cast

Yu Serizawa voices Oriko Fujido. In her comment following the announcement, Serizawa highlighted the character's many sides, including her elegant ojou-sama demeanor, exaggerated comedy faces, occasional sharp tongue, affection for her town and residents, and uninhibited behavior once she becomes gigantic.

Junya Enoki plays Dr. Sebastian, the butler and researcher who supports Oriko while also creating the giantification drink.

Enoki described the series as maintaining an unusually energetic setting and tone, while also pointing to the warm relationship between Oriko and Sebastian as a source of more relaxed moments amid its giant-scale chaos.

The Teaser Establishes the Scale of the Giant Action

The first footage does more than introduce the cast. Tatsunoko Production immediately uses the difference in scale as one of the anime's core visual tools.

Once Oriko transforms, buildings that previously formed an ordinary part of her city become small enough for her body to break through. The gigantic invader then gives her a reason to personally defend the place she has spent years building with Sebastian.

That keeps the original manga's central joke intact: Oriko genuinely wants to save her city, even though her own giant form can create substantial chaos in the very place she is protecting.

The Anime's Production Staff Expands

The August announcement had already confirmed Hiroshi Ikehata as director, Katsuya Oshima as assistant director, Hajime Mitsuda as character designer and chief animation director, and Yu Sato for series composition and scripts.

The teaser update adds further production credits. Takashi Hiruma handles art setting, Hijiri Ito of Studio ARA serves as art director, Misako Akama is responsible for color design, and Masashi Kamiki and Yohei Konishi are the directors of photography.

Akinori Mishima handles editing, Takumi Ito serves as sound director, HALF H・P STUDIO handles sound production, and Yusuke Shirato, Kijibato and Aira of Dream Monster compose the music. Tatsunoko Production remains responsible for animation production.

Manga Volume 13 Arrives September 11

The source manga is also receiving another collected volume. Giant Ojosama Volume 13 is scheduled for publication by Shogakukan on September 11, 2026.

The volume is officially priced at ¥770 including tax, uses a B6 format, contains 192 pages, and carries ISBN 9784098548187.

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Its synopsis continues Oriko's search for her mother, Victoria. After the revived people-finding machine reveals Victoria's location, another problem emerges: the group needs a particular form of energy to get their spacecraft moving.

Because Volume 13 had not yet launched when the anime teaser arrived, 12 collected volumes were commercially available at the time of the announcement.

Why This Matters

1) The teaser immediately captures the manga's core identity

Oriko's giantification is no longer just part of a synopsis; the anime shows it directly against the scale of buildings and the city.

2) The two central characters now have voices

Yu Serizawa and Junya Enoki establish the Oriko-Sebastian partnership that drives much of the series' comedy and story.

3) Tatsunoko Production is beginning to show its approach

The footage offers an early look at the anime's comic timing, character expressions, visual scale and treatment of giant action.

4) The manga remains active ahead of broadcast

Volume 13 arrives only days after the teaser, meaning the television adaptation is moving forward while its source story is still expanding.

Anime Information

For now, the additional important information currently known includes:

• Giant Ojosama is a TV anime adaptation of Nikumura Q's manga
• the anime is scheduled to begin broadcasting in January 2027
• no specific premiere date has been announced
• its Japanese television networks remain unannounced
• Japanese and international streaming platforms remain unannounced
• the episode count remains unannounced
• episode runtime remains unannounced
• opening and ending themes remain unannounced
• the teaser PV is the first major animated promotional video
• official Japanese and English versions of the teaser are available
• Yu Serizawa voices Oriko Fujido
• Junya Enoki voices Dr. Sebastian
• no additional character cast was revealed in this teaser update
• Hiroshi Ikehata is directing the anime
• Katsuya Oshima serves as assistant director
• Hajime Mitsuda handles character design and chief animation direction
• Yu Sato handles series composition and scripts
• Takashi Hiruma is responsible for art setting
• Hijiri Ito of Studio ARA serves as art director
• Misako Akama handles color design
• Masashi Kamiki and Yohei Konishi serve as directors of photography
• Akinori Mishima handles editing
• Takumi Ito serves as sound director
• HALF H・P STUDIO handles sound production
• Yusuke Shirato, Kijibato and Aira compose the music
• Miku Kaneko serves as animation producer
• Tatsunoko Production handles animation production
• the premise follows Oriko protecting the town she received for her fourth birthday
• Dr. Sebastian acts as both Oriko's butler and researcher
• Sebastian's giantification drink allows Oriko to become gigantic
• a gigantic invader provides the initial threat in the anime introduction
• the manga began publication on Sunday Webry on July 30, 2021
• Shogakukan categorizes the manga as a gag title
• 12 collected volumes were available when the teaser was announced
• Volume 13 is scheduled for September 11, 2026
• Volume 13 costs ¥770 including tax
• Volume 13 is a 192-page B6 release
• its ISBN is 9784098548187
• anime information is available through the Giant Ojosama Official Anime Website
• official updates are available through Giant Ojosama Official X
• the Japanese teaser is available through the Official Japanese Teaser PV
• the English teaser is available through the Official English Teaser Trailer
• manga information is available through Giant Ojosama on Sunday Webry
• Volume 13 details are available through Shogakukan Giant Ojosama Volume 13

Closing

Giant Ojosama is beginning to reveal what its television adaptation will actually look and sound like. The first teaser puts giant Oriko on screen, introduces Yu Serizawa and Junya Enoki in the leading roles, and demonstrates the early combination of comedy and giant-scale action being developed at Tatsunoko Production.

The anime remains scheduled for January 2027, while its exact premiere date, broadcaster, streaming services, additional cast, episode count and theme songs remain unannounced. Before then, the manga's Volume 13 will arrive in Japan on September 11.