On 10 September 2020, the upcoming original anime movie Sing a Bit of Harmony released a new promotional video. The new movie is slated to premiere by 2021, which will be produced by J.C. Staff and co-produced by Funimation under the direction of Yasuhiro Yoshiura.
Director: Yasuhiro Yoshiura
Scriptwriter: Yasuhiro Yoshiura
Script Co-writer: Ichirou Oukouchi
Character Draft: Kanna Kii
Chief Animation Supervisor/Character Design: Shuichi Shimamura
Animation Production: J.C.Staff