English Toriko Hime - Hakudaku Mamire no Reijou 02 | 虜姫～白濁まみれの令嬢～ 下巻

Our heroine is the daughter of a well-to-do politician. This being so, she attends a prestigious all-women private school. Either something happens to her famous father, or shes tricked and is being held for ransom. In any case, she and her friends end up locked away in a strange prison filled with mindless, sex-craved men for fellow inmates. Soon enough these men get a hold of them and proceed to prison-rape the lot of them. Still with fight, she tries to devise a way out of this small slice of hell.