Here is the full list of all 12 Lovingly Evil achievements.
Get the clone's good ending
Get Satan's Ghosts of the Past -ending.
Get the vampire's friendship ending
Get the vampire's seductive ending
Get the vampire's romantic ending
Become a vampire
Get a phone number from all 5 love interests
Get Satan's Found Family ending
Finish the game with as little interaction with characters as possible
Get the stepmother's Banishment ending
Get the stepmother's Bad Apple ending
Get the AI's good ending