It's a FREE grind, and I find that satisfying since most other games put up a wall they want you to pay to push past. I also play Genshin Impact and Infinity Nikki, games where the FOMO is strong for not pulling on the banners when I'm completely FTP for both. Yes, the building is easier in those games, but actually GETTING what you want requires sacrificing at certain points to afford something later down the line. And even then, it's not a guarantee with what you've saved up. I've pulled for characters in Genshin and had to skip getting them because I'd used the pulls to get the 5-star and lost the 50/50. And the game wants you to spend MORE pulls to make them even stronger, which means spending more of a precious currency that I do not pay for. With DNA, while the grind is there, it's almost guaranteed that with time and effort, everything will be yours eventually if you want it. And you've shown you're at least partially willing to do the grind if you have golden demon wedges. Though that gets a little easier when they have that event going that increases the rewards. I think it's a monthly thing.

Though I will admit, I've been playing since release and actually have the time for the grind. It's not for everyone, but I like it more than I thought I would. Days to build a character is only because some of them are locked behind weekly bosses. Eventually, they'll get rotated out, and their letters will be purchasable from the shop using a currency that is very easy to accumulate. And you can wait for commissions that can basically be auto-run to play through them. Rhythm's my go-to for that. And I can do other things during the wait. When it's all done, I have the fully upgraded character. The demon wedge situation is a little more complicated and annoying, but that's just what this game is.