Everyday Happy Time! Glitch
1. Accept Everyday Happy Time! quest
2. Wait 30 minutes
3. Complete the quest and you will get a box which contain good items
4. Straight after you receive the box, throw away the black feather and forfeit the quest.
5. Repeat step 1, 2, 3, 4.
This will allow you to redo/accept the quest again. The quest is a daily quest but with the glitch, you can attempt the quest as much times as you want.