My X-Overd game is stuck at right after logging in. I get some gacha screen but without any of the required currency available. The only two buttons I can click are for a single roll and a ten-roll. No menu to see, nothing else to click. Clicking on either gacha option (though I have no currency) results in an error message: "Is invalid progress of the tutorial".
Well, I'll just hope it still counts my login so I can at least get a couple of 5* tickets?

Which gacha is the best to use shards in, free gacha or man gacha?

Getting a couple men to start with isn't a bad idea. Then spam the free gacha for UC weapons and to max limit break female UC jobs.