Thanks a lot. Its help.
I tried Girls Creation first as it seems to be the new game. It's confusing. I'm not even sure what is considered tutorial and what is not. I did the mandatory battle and gacha and I was sent on the main screen and... that's all. There is a lot of mini-tutorial all over the place on the various screens but I don't know if it's considered tutorial or not. I may have missed some of them. Weird.
The game looks nice and maybe fun, some girls have good design (and some... are more questionable) but everything take years to load. That's crazy.

After testing several of theses gacha games, they all looks pretty similar on many points. I don't feel really invested on them and none catch me. I started to wonder why FKG worked for me. First gacha game? Nutaku translation make it easier to start? Better general feeling?
What do you think about it? Why did you stay here instead on another game?