Battle Slave Nina by Tistrya (eng) - Adult Sex Game

Machine translation

A tyrant ruled the demon world with fear.

A champion slave fighter, Tamiko, staged a coup d'etat,
dethroning the tyrant. Only a stronger slave fighter could defeat Tamiko.

So the tyrant chose Nina. That's you.

Your ultimate goal: defeat Tamiko.
Between here and are a hundred levels of rank!
It will require you to do things... such things...