The popular light novel 'Mamomusu,' which won the Grand Prize at the 2nd Docomo Media Awards, has been officially announced for a TV anime adaptation!

To commemorate the anime announcement, a teaser visual has been released.

The main cast has also been revealed: Ishimi Manaka will reprise her role as the protagonist Rien from the original PV, alongside Kobayashi Chiaki as Hakura and Otsuka Akio as Ao. Comments from the cast have also been received.

Additionally, the main production staff have been unveiled, with comments arriving from original author Amato Damu, character designer Shirabi, and director Kumano Chihiro.

The official anime teaser website (https://mamomusu.com) and official X account (https://x.com/mamomusu_pj) have also been launched. Stay tuned for more updates!

Teaser Visual Released to Celebrate Anime Announcement!

Main Cast (Rien, Hakura, Ao) Revealed with Cast Comments!

Rien

CV: Ishimi Manaka

【Ishimi Manaka Comment】

I'm Ishimi Manaka, and I'll be voicing Rien in 'Mamomusu.'

I first became involved with this project through Docomo's original PV. I'm thrilled to continue portraying her in the anime adaptation.

At first glance, Rien may seem confident and carefree, but she's actually a reliable character with vast knowledge and the ability to command monsters.

While the story tackles serious themes, it also features great comedic timing between Rien and Hakura and many fun scenes. There's so much to enjoy!

I hope you'll all look forward to the anime's broadcast!

Hakura

CV: Kobayashi Chiaki

【Kobayashi Chiaki Comment】

I'm Kobayashi Chiaki, and I'll be voicing Hakura.

As the title suggests, 'monsters' play a crucial role in driving the story forward.

How will they form their own ecosystem? How will they interact with humans?

And how will Rien and Hakura weave their story alongside these creatures? Please stay tuned!

Thank you for your support!

Ao

CV: Otsuka Akio

【Otsuka Akio Comment】

I'm Otsuka Akio, voicing Ao.

I only learned about this work during the audition, but I'm excited to see how it turns out.

It seems to fall into the road movie category—my personal favorite, it appears.

The role itself is intriguing too: a veteran monster accompanying a young protagonist...

What do you think?

Don't you already find it 'interesting'?

Main Staff Revealed

【STAFF】

Original Work: Amato Damu (DRE Novels / Published by Docomo)

Character Design: Shirabi

Director: Kumano Chihiro

Series Composition: Sugisawa Satoru

Character Design: Kasasagi Akane

Animation Production: project No.9

Comments from Original Author Amato Damu, Character Designer Shirabi, and Director Kumano Chihiro!

＜Original Author: Amato Damu＞

【Amato Damu Comment】

'Mamomusu' is becoming an anime! ...An anime!?

I can barely believe it myself. A huge dream I've had since childhood has become reality, thanks to the support of everyone who's cheered me on. The broadcast is still a little ways off, but everyone involved is working hard and seriously. Please wait just a little longer for the new beginning of Rien and Hakura's troublesome journey.

＜Character Designer: Shirabi＞

【Shirabi Comment】

Congratulations on the anime adaptation of 'Mamomusu'!

I'm very excited to see how Rien, Hakura, and the other characters will come to life in motion.

＜Director Kumano Chihiro＞

【Kumano Chihiro Director Comment】

Congratulations on the long-awaited anime adaptation.

This work has a strangely comforting atmosphere that can't quite be called a nightmare, a nostalgic flavor, and a dreamlike charm that keeps you up at night wondering what happens next.

I want to portray both the beauty and cruelty of this world as a hymn to all things in existence.

TV Anime 'Mamomusu' Information

Introduction

A journey through a world of humans and monsters, reflected in green eyes.

Long ago, the primordial witch Ringreen was said to have saved the world.

Her descendant, the girl Rien, is known as the 'Daughter of a Monster Tamer'

and possesses the ability to command all kinds of monsters.

One day, deep within a quiet forest,

Rien encounters Hakura, an adventurer who has been fighting a vicious monster and hovering between life and death.

"Do you want to live? Or would you rather find peace?"

Saved by her hand, Hakura is hired as Rien's bodyguard,

and the two begin traveling together.

However, the events that come to her—someone with such special powers—are

nothing but troublesome incidents involving difficult-to-handle monsters...

A slightly troublesome yet irreplaceable journey begins now, alongside Rien—a mischievous little demon who's selfish and confident, yet impossible to ignore.

Cast

Rien: Ishimi Manaka

Hakura: Kobayashi Chiaki

Ao: Otsuka Akio

Staff

Original Work: Amato Damu (DRE Novels / Published by Docomo)

Character Design: Shirabi

Director: Kumano Chihiro

Series Composition: Sugisawa Satoru

Character Design: Kasasagi Akane

Animation Production: project No.9

Official Website & SNS

Official Website: https://mamomusu.com

Official X: https://x.com/mamomusu_pj

Original Work & Book Information

Grand Prize Winner of the 2nd Docomo Media Awards

'Mamomusu'

【Novels】

Author: Amato Damu, Illustrations: Shirabi

Label: DRE Novels, Published by Docomo

Volume 1: Mamomusu — The Girl with Green Eyes

Volume 2: Mamomusu — The Witch Hunt of the Black Stone

Volume 3: Mamomusu — The Unicorn Festival <Release Date: July 10, 2026>

▼ Original Work Page

https://drecom-media.jp/drenovels/series/mamonotsukai

Novel Volume 1

【Manga】

Label: DRE Comics

Art: Sato Yu

▼ Free preview available on 'Doricomi+'!

Serialization starts September 2026

https://drecomi-plus.jp/series/CD00035

©Amato Damu & Docomo / Mamomusu Production Committee

©Damu Amato

Illustration by shirabii

FACT BOX

  • Source: PR TIMES
  • Category: Event
  • Organizations: project No.9