Yes, but you can probably buy both Eiyuu Senki games (normal and Gold) for probably 60 bucks. And those should be GOOD GAMES, not gacha garbage where 60 bucks gets you nothing but a bad feeling.
As such, I don't understand why one would want to play the gacha version...I skipped all of the story, but honestly, the combat is FUN. Also the way your girls level up like, exponentially is pretty fun. It's like, got a dupe of a girl? Well, you just fucking doubled her stats. What, you got her dupe again? Well, DOUBLE IT AGAIN BABY.
But yeah, since that can be done like 9 times per girl, if you don't pay you simply CANNOT hold a candle against whales.