Here is the full list of all 48 Kawaii Deathu Desu achievements.
Get 11000 souls with Suu
Get 9 Idol's skins
Get 11000 souls with Mary
Get 7000 souls with Mary
Burn 3500 fans with Mary's skill
Get 3500 souls with Mary
Get 7000 souls with Suu
Enchant 5000 fans with Suu's skill
Get 3500 souls with Suu
Enchant 3500 fans with Suu's skill
Get 11000 souls with Abigail
Get 7000 souls with Abigail
Get 5000 souls with Abigail
Get 3500 souls with Abigail
Use Abigails's skill cat 10 times
Invoke the trio Abigail's puppies 5 times
Reach maximum level with Mary
Reach maximum level with Suu
Reach the maximum level with Abigail
Unlock Abigail Idol
Reach maximum level with Elysa
Get 11000 souls with Elysa
Get 7000 souls with Elysa
Get 3500 souls with Elysa
Block 1500 fans with Elysa's security
Punch 1500 fans with Elysa's security
Punch 1500 fans with Elysa's big security
Use Elysa's big security skill 10 times
Unlock Elysa Idol
Unlock Mary Idol
Unlock Suu Idol
Get 11000 souls with Emmy
Get 7000 souls with Emmy
Get 3500 souls with Emmy's skill
Reach the maximum level with Emmy
Get 3500 souls with Emmy
Unlock Emmy Idol
Reach the maximum level with Death-chan
Get 11000 souls with Death-chan
Get 800 souls in one show
Get 365 Scores in the First Show
Get 7000 souls with Death-chan
Finish all Shows in KDD
Listened all music KDD
Get all KDD shows
Get 3500 souls with Death-chan
Survive 5 Shows in the Game
Get 20 fans souls in one match