Here is the full list of all 13 The Ditzy Demons Are in Love With Me achievements.
All routes cleared
Play all routes and view all content
Aifa route clear
Use Gome's system voice
Arle route clear
Miyabi route clear
Emiri route clear
Reika route clear
Riria route clear
Rin route clear
Yuu route clear
First use of panic button
Start playing Koikuma