[azurezyq]

It depends on how you play the game. One copy or 4 copies, even 5 star characters or 4 star characters don't really matter in killing all monsters in the open world. As long as you do not play Abyss, it doesn't matter. (e.g., me, 3 years into the game and abyss only cleared at 10-2) I spent a few hundred dollars on chars though, but they were mostly about aesthetics (you just like them).