Here is the full list of all 31 Dream Date achievements.
Win the favor of Kashima
Dispel the uneasiness of Kashima
What kind of uniform？
It's a real kiss
Find the kitten again
Have all of Kashima
First touch
Find the kitten
Unlocked Yurui's CG
Have all of Yurui
Sensitive idol
Outdoor hot spring with mixed bath
The idol of hard work
Be strongly kissing
The idol is sick
This soda is all over the place!
dol is the king of the stomach!
Unlocked Kashima's CG
Unlocked Rina's CG
Have all of Rina
Skilled Rina
Super size idol
Active Rina
Rina is jealous
Is Rina on purpose？
Reward after cleaning?
Feeding of Rina
Welcom to Dream World