Isekai Joshi Kangoku

Synopsis

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)