This is ostensibly a strategy RPG game, but you have barely any control over the battles since it's mostly automated. You just watch cute chibi anime girls shoot at evil anime girls and occasionally use a special skill when you get enough energy points or whatever.

The story is basically an isekai where some dude gets teleported to this world of cute anime girls (and robot and dog people too I guess?) who all carry guns but also are nearly impervious to bullets and can survive multiple gunshots. You're suddenly put in charge of these girls as their sensei for like 6 schools for some reason, and immediately every single want of them wants to be violently impregnated by your throbbing cock.

They all have their own little quirks and stories you unlock by increasing your relationship level with them, which is kind of weird because they're all your students and are between the ages of 15-18, but who cares the girls are all cute and I want to die by being suffocated in Asuna's cleavage.

Edit: I finally completed the main arc of the story after ignoring it forever, and I'm surprised by how well written this game is. Wasn't expecting that from what looks like a dumb booba game. Honestly, I think it deserves a slight bump up in score due to that.

It's still pretty mindless gameplay-wise, but it definitely has more heart to it than you'd expect a gacha game to have.