Sharedol
Type: ONA, Episodes: 1
Aired: Oct 25, 2021
Studio: Toei Animation, Dangun Pictures
Source: Original
Rating: PG-13 - Teens 13 or older
Synopsis:
The time is the Edo period Kansei year.
 
Under the "Kansei Reforms" by Roujuu Sadanobu Matsudaira, the people's entertainment was severely cracked down. Everyday life is somewhat stuffy, like a bird trapped in a basket.
 
Meanwhile, the girls who live with their own worries.
 
At that time, history moves.

A man from current Japan explodes their thoughts as "idols!"

(Source: Official YouTube channel)