Kimi no Na wo Yobeba

Both involve the same concept that being public comfort stations in schools, but they take their stories in different directions so if you like (or hate) one I implore you to give the other one a go. Unless you thought that what you just watched was mediocre then trust me it won't get much better either way. 

Both are hentai in a school setting with a system implemented where certain female students are treated as objects to relieve sexual desires. In Kimi no Na wo Yobeba, the girls aren't there as students rather it's their role.