Based on

TV Shows like Seven Ms. Prisoners (2017)

Kamiwatari Kotone is a geisha in Kyoto. While she is sleeping after a night of drinking, her fellow geisha is killed. Kotone Kamiwatari is falsely accused of her murder and is sent to prison. There, she is bullied by other prisoners, but Kotone relies on her training from senior geishas to persevere. She also learns why she was framed for murder and sent to prison.