Anyone know if all 4star and possibly 5star girls are available from factory? I've gotten several 4star girls but several of them have been dupes, making me think there's possibly only a limited variety, but I'm probably wrong and it's just a bad luck though some verification would be nice.

Mostly trying to decide whether or not to save for all 5 slots or just 10+1 gacha. I can't imagine how long 3600 cores is gonna take to get for the last 2 slots and I doubt I'll be doing well on Portal of Chaos rankings to get cores as it'll most likely end up with paying players hoarding the top spots like in any games with that feature.