If all you want is harem addition, get the girl, probably get the accessories (they look overall better than the regular equipment) and go back to farming story maps/dailies instead of event maps (it's still farming anyways lol)

If you're planning ahead to Nation Battles or are a completionist/perfectionist then you're going to have to farm. For me, I make sure I get the daily quests done (RB I sometimes have to run 12-1 or something a few times to make sure it happens) and then farm the event map because story maps are same-old so since it's farming either way, might as well stock up on pumpkins for perfect girl and/or more certain ampys/100 manyus/other stuff.