Injuu Kangoku ~Dirty Prison Ship~

In search of resources, humanity sets off into space, the final frontier. A crew of 14 aboard the spaceship Settler has just finished it's mission, and is on the way back to Earth. However, engine trouble leads the crew to board a passing ship... From there, an unknown life form starts to take control of the crew's reason, and turns them into lewd beasts. Can you and the heroines escape alive?