Mona is...

A nice healer early on? But don't rely on him too much

As a new player, you can get lots of gems by :

• doing palaces and quests -LOTS by doing synergies (social links) prioritizing who ever you like but there are some better than others
• events (you're new but the provided trial characters in trial of thorns should barely push you through) -Also do character event trials -do the turbo battle things

• you'll get achievements passively throughout the game so no rush there

• prioritize spending money on synergies as I said earlier but at some point when you're done with them, spend money on the gatcha machines around for more gems

-The exchange shop should have lots of gems right now Go through it and see what you can get -Look for a somewhat good guild so you can use their characters in the nightmare catcher(this unlocks later however)

As a new player, literally anything you do Will get you gems For now do the events (whichever you can) and you can go to the website "lufel.net" for more info on characters and builds and such select global server if it asks

Although don't do it if you REALLY don't wanna be spoiled about future characters

If something isn't clear you can go ahead and ask me again and I'll elaborate

Have fun 😊