Isekai Joshi Kangoku

When Eri Arisaki woke up, she found herself in a different world, and for some reason she was locked in a prison.

The prison had its own rules, and Eri eventually got caught up in a big conspiracy within the prison.......

A survival story that unfolds in a prison full of different female species, each with their own quirks!

(Source: Kadokawa, translated)