>>2468394No idea.
Chain 1 has like 6 or 7 games in it now from the 2 Saki Haruka games to Zenra Toukou Training, to Zengaku. The police tell the school they won't get involved in incidents of rape or molestation because they're hands are full so fuck it, your students are on their own. So they setup a buddy system where male students protect the girls. This is a major theme of the games. Girls from Chain 1 are all in the Omake Scenario
Chain 2 is about magical girls that get their power from 'Embarrassment Energy' where they have to do increasingly embarrassing things in order to fight monsters and shit. If they collect enough energy they can erase everyone's memories. They can also get their virginity back so they can get raped as many times as they want without worry.
Some of the girls from Chain 2 are in the Omake Scenario
Chain 3 is about a big titted chairman of the student council who gets raped on the way to school by a band of guys. They're working together so they don't get caught, basically whenever she gets on a train all the guys there are in on it. After raping her they steal all her clothes forcing her to go to school naked. This goes on for weeks. The school and the police have had enough of her shit, they think she's doing it herself and making excuses. So they just make her go to school naked from now on, no shits given. She spends most of the day getting raped by classmates, teachers and strangers.
The second game introduces her little sister and the molesters get caught, there's a trial and they're sent to prison. The 3rd and 4th games introduce their cousin who hears misleading information that they actually liked being molested and seen in public naked. So he continues the 'game' of stripping them naked and sending them to buy icecream at the convenience store, or ties them up to a jungle gym at the park and tells guys where to fuck cute girls for free and so on.
Both girls are in the Omake Scenario