Here is the full list of all 36 Criminal Girls: Invite Only achievements.
Completed Miu's Wish.
Completed Himekami's Wish.
Himekami turned into a Knight.
Miu turned into a Knight.
Viewed Tomoe's Individual ED.
Viewed Alice's Individual ED.
Viewed Shin's Individual ED.
Viewed Ran's Individual ED.
Cleared XF: Warden's Block.
Completed Yuko's Wish.
Completed Sako's Wish.
Completed Tomoe's Wish.
Yuko turned into a Knight.
Tomoe turned into a Knight.
Sako turned into a Knight.
Completed Shin's Wish.
Completed Alice's Wish.
Completed Ran's Wish.
Shin turned into a Knight.
Ran turned into a Knight.
Cleared Purgatory.
Alice turned into a Knight.
Viewed Kisaragi's Individual ED.
Completed Kisaragi's Wish.
Kisaragi turned into a Knight.
Cleared the Education Block.
Cleared the Frost Block and brought everyone together!
Cleared the Inferno Block.
Cleared the Morass Block.
Cleared Prison Block.
You are Hell's champion.
You cleared the Garden of Memories.
Viewed Sako's Individual ED.
Viewed Yuko's Individual ED.
Completed the game.
Discovered the hidden ending.