The official website of BS Fuji revealed a new short anime titled Comet Freyline: Prologue (Suisei no Freyline ~Prologue~) on Thursday, March 24, 2022. The 10-minute short will cast VTubers AZKi, Ruri Asano, MaiR, Ginga Alice, and Kyoko Kuramochi.

3/31(木)24:30～放送✨#アニメギルド
『彗星のフロイライン〜プロローグ〜』

目が覚めると異世界にいた森田が挑戦することになったのは、妖精を起用したアイドルプロデュース。

Vtuberとして活躍中の #AZKi #MaiR #朝ノ瑠璃
#倉持京子 #銀河アリス がアニメの世界に！https://t.co/1vyJJjLDJQ pic.twitter.com/SLVq9fDQpC

— ウメちゃん🐶【BSフジ公式】 (@Ume_bsfuji) March 23, 2022

In addition to the VTubers, the Suisei no Freyline anime cast also includes:

• Tomokazu Sugita as Morita
• Rie Takahashi as Guild Mistress
• Kikuko Inoue as Head Goddess
• Yuri Ehara as Hikari
• Yurie Kozakai as Wakaba
• Marina Yamada as Mizuki
• Shū Natani as Sumire
• Yua Nagae as Sakura

The voice cast will also include voice actors Inoru Araki and Yoshiki Iida, however, their roles are yet to be revealed.

Hiroyuki Furukawa is directing the anime, as well as writing and supervising the script at STUDIO6’oN . The characters are designed by Kou Aine. The art director is Masakazu Miyake, and the colour key artist is Ayaka Nagano. Yuri Tamura is the editor, and Yuki Shiina is the compositing director of photography.

BS Fuji describes the plot as:

Morita wakes up in a different world than the one he is used to. In order to save this strange, other world, he enlists the help of fairies and demi-humans. Can they save the world with song and dance brought upon by idols?

Source: BS Fuji via Otakomu