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
Super size idol
Unlocked Rina's CG
Have all of Rina
Skilled Rina
Rina is jealous
Active Rina
Is Rina on purpose?
Unlocked Kashima's CG
Reward after cleaning?
Feeding of Rina
Outdoor hot spring with mixed bath
Unlocked Yurui's CG
Have all of Yurui
Sensitive idol
Be strongly kissing
The idol of hard work
The idol is sick
dol is the king of the stomach!
This soda is all over the place!
Welcom to Dream World