Here is the full list of all 23 YUMENIKKI -DREAM DIARY- achievements.
It's so cozy
All wrapped up.
A new day begins.
Escape from your fears.
Shutting out the world.
Play along with a lonely child.
I didn't mean it!
Meet a mysterious blonde girl.
Group hug.
A slimy friend.
Too young for this.
Afraid of the dark.
Reach a bed of flowers on top of a pyramid.
Stare at the vast universe.
Don't get wet.
Take me out of here!
Find a resting place in the middle of the dark.
Back to school.
Why did you do it?
It's just for self defense.
No stone unturned.
Another escape from reality.
Wake up.