Amoria: The Sakura Garden 1 quest.

Also, the second part of the quest requires you to get 20 purple/white gift boxes from pink teddies. (Or brown teddies, I can't remember exactly.) They don't drop, or have a ridiculously low drop rate, like nependeath honey.

They used to not drop, that was fixed recently and you can get them now.
It took me about 2 hours to get all 20 and i even used a 30min 2x drop.