Here is the full list of all 21 Vampires' Melody achievements.
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Complete Chapter 8: New World
Nothing, and everything
The winner in life
Lonely exile
Do Not defy the law
The rain that never ends
Another new world?
Three shots and six holes
Earth and Ether
The end of the sea
Complete Chapter 7: If this second lasts...
Complete Chapter 6: A Beautiful Moment
Complete Chapter 5: Decision
Complete Chapter 4: The Line between Life and Death
Complete Chapter 3: Nowhere to Stay
Complete Chapter 2: Survival
Complete Chapter 1: Waking up from a Dream
Normal people wouldn't believe it
Complete Prologue: An encounter
Welcome to Vampires' Melody