Untrusted Developer
I'm here from the English version, Clash of Sky. This developer @tetania blocks accounts that are using "illegal programs", but won't explain what programs you used, won't listen when you explain you never cheated, and then disappears and never answers your questions again.
The game itself isn't good either. Great art, but gameplay is extremely boring (just auto everything). Your summon resources dry up very quickly and by the time your team is level 40, you hit a wall and can't progress. The sound design sucks as there are only a few sound effects that get recycled for every girl. Also, good luck not getting stuck in the courtyard. There's a bug that glitches out the courtyard with a white screen and the dev refuses to acknowledge or address the issue, let alone fix it.
If you want an idle game with half naked girls, go try Idle Huntress or Idle Angels. Same exact concept, but without having to deal with an incompetent dev who has never learned how to communicate with others. This game's saving grace is the art, which you can find an infinite amount of on pixiv. I strongly recommend any other game. You might get really far in this one, with good gacha pulls and everything, but if @tetania just decided to block your account because they had a bad day, you are completely screwed. Please be cautious.