Here is the full list of all 19 Tasty Shame in Silver Soul! achievements.
Finish the second Charlotte route
Finish the second Nicole route
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Finish the third Charlotte route
Finish the third Alice route
Finish 50 levels
Finish the first Mary route
Finish the second Mary route
Finish 40 levels
Finish the second Alice route
Finish 30 levels
Finish 20 levels
Finish the first Nicole route
Finish the first Alice route
Finish the first Charlotte route
Finish 10 levels
Finish the first level
Start the game for the first time