The official Twitter account dedicated to the feature film and anime , Kurayukaba , then announced two new voice actors for the cast.
Tomoyo Kurosawa will play Tanne

Yuu Serizawa will play Saki.

Furthermore, the team announced that the “first chapter” of the project is complete. The “first chapter” of the feature film, the previous pilot film, and the documentary of the recording sessions and cast dialogues will be screened at the Cine Libre Ikebukuro in Tokyo between August 13 and 26, along with the four previous short films by director Shigeyoshi Tsukahara.
Here's a preview of the screenings:
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「
⭕タンネ役:#黒沢ともよ(@TomoyoKurosawa)さん
⭕サキ役:#芹澤優(@iRis_s_yu)さんさらに❗劇場上映が8月13日(金)~に決定🎉
細部まで丁寧に作りこまれた塚原ワールドにご期待ください👍上映日までお楽しみに✨ pic.twitter.com/yiAIX0OUHA
— 塚原重義作品公式 (@kurayukabaINFO) July 9, 2021
Source: ANN

