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)