Here is the full list of all 17 ~Azur Ring~virgin and slave's phylacteries achievements.
All boss challenge scores in difficulty 4 are above S
kill 5000 enemy
All boss challenge scores in difficulty 4 are above C
All boss challenge scores in difficulty 4 are above A
All rooms unlocked
Pass the level 20 of the Secret Place in difficulty 4
Complete Episode 6
90% rooms unlocked
kill 500 enemy
Complete Episode 5
Complete Episode 4
Complete Episode 3
50% rooms unlocked
Complete Episode 2
Complete Episode 1
Complete Episode 0
First kill enemy