Wueheej a "pseudo" Quest Stacking rewards.
Srsly, this needs to be implemented ASAP. Its annoying the living shit out of me to go to quests click complete, then go back to which ever menu I was before, give gift/upgrade/pull gacha, go to quests, click complete, rinse and repeat xyz times.
So grateful DMM allows you to complete everything and then just collect the reward without the need to menu hop like a rabbit on cocaine :P