I play both versions, but I will soon run out of good girls to upgrade on Nutaku thanks to the bad luck with gacha. The good thing about the DMM version is that you can recover from the bad rolls much faster thanks to the freebies, you don't have to wait for almost 2 months to roll a 10+1. I got only 1 gold from 4 10+1 rolls on DMM, but I don't really care because I can roll again relatively soon.