Hi, you do not keep your money. You do keep the girls levels and their battle stats. You will also earn money faster. You also keep studios you have bought with diamonds. Basically, Resetting is kind of the way you play this game. After resetting for a bit (and investing the diamond you have won in Warp-Bonus), you will be able to unlock most of the girls up to Indra with in a few hours and unlock the higher level girls much faster.
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