Here is the full list of all 48 Voice of Cards: The Isle Dragon Roars achievements.
Unlocked all achievements.
Obtained more than 50,000G.
Witnessed the game master fall asleep.
Learned a new skill from a suspicious doctor.
Completed your collection.
Collected all enemy cards.
Collected all character cards.
Collected all equipment cards.
Began a game using saved data carried over.
Viewed all endings.
Defeated the Dragon's lingering hatred in the Vexing Cave.
Completed Chapter 7.
Collected all key item cards.
Saved up the maximum amount of gems.
Collected all item cards.
Reached MAX LV with one character.
Obtained Melanie's strongest weapon.
Obtained Mysterious Card 10.
Obtained Mar's strongest weapon.
Obtained Bruno's strongest weapon.
Won the battle against the mysterious knight.
Obtained the protagonist's strongest weapon.
Won the battle against the island hermit.
Obtained Ridis's strongest weapon.
Collected all skill cards.
Completed Chapter 6.
Successfully fled a battle.
Obtained Mysterious Card 9.
Obtained Mysterious Card 7.
Obtained Mysterious Card 8.
Completed Chapter 5.
Obtained Mysterious Card 4.
Completed Chapter 4.
Obtained Mysterious Card 6.
Completed Chapter 3.
Obtained Mysterious Card 5.
Completed Chapter 2.
Struck foes with elements they are weak to thrice in a single battle.
Obtained Mysterious Card 3.
Completed Chapter 1.
Obtained Mysterious Card 2.
Won a round on Include All at the game parlor.
Won a round on Add Events at the game parlor.
Won a round on Add Skills at the game parlor.
Won a round on Simple at the game parlor.
Played at a game parlor for the first time.
Obtained Mysterious Card 1.
Defeated all enemies without taking any damage.