This is a general devoted to the spectacular eroge company Bishop.
https://vndb.org/p215
Bishop is an eroge company with a long history of making fantastic hentai games, their catalog spans nearly two decades and is filled with extremely high quality games, most of which follow the visual novel format, no gameplay beyond choosing girls (with occasional item and training systems to spice things up). The vast majority of Bishop games follow a simple format: Hot girl doesn't like MC or sex, MC rapes girl repeatedly through blackmail, girl falls into lust from the power of cock and becomes his willing and adoring sex slave. Formulaic but always erotic. There's many series (Mesu Kyoushi 1-4 for instance) but there's barely any inter-continuity so you can pick whichever game you want to play and have at it. Good fapping, brothers.
Games used in OP pic (left to right, row by row)
Houkago 3 - https://vndb.org/v18591
Mesu Kyoushi 4 - https://vndb.org/v16104 ("slut.jpg" too)
Yakata - https://vndb.org/v12995
Chijouku no Seifuku - https://vndb.org/v16953
Mesu Kyoushi 3 - https://vndb.org/v11916 (tits too, and the gathered sluts)
Sansha Mendan - https://vndb.org/v6357 ("slut 2.jpg" too)
Note - no games have been translated as of yet, however it is advisable to download the games and not just look at CG sets. Reason being, bishop games are well known for their soundtracks and "lust transition". Once you break a girl and she becomes your slave, many bonus scenes will appear where you can have sex with her, and these CGs will be the same as the ones before, only edPost too long. Click here to view the full text.