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 character cards.
Collected all equipment cards.
Began a game using saved data carried over.
Collected all enemy cards.
Viewed all endings.
Defeated the Dragon's lingering hatred in the Vexing Cave.
Collected all item cards.
Completed Chapter 7.
Collected all key item cards.
Obtained Melanie's strongest weapon.
Obtained Mysterious Card 10.
Obtained Mar's strongest weapon.
Obtained Bruno's strongest weapon.
Reached MAX LV with one character.
Obtained Ridis's strongest weapon.
Won the battle against the island hermit.
Won the battle against the mysterious knight.
Completed Chapter 6.
Collected all skill cards.
Obtained Mysterious Card 9.
Obtained the protagonist's strongest weapon.
Obtained Mysterious Card 7.
Successfully fled a battle.
Obtained Mysterious Card 8.
Completed Chapter 5.
Struck foes with elements they are weak to thrice in a single battle.
Completed Chapter 4.
Obtained Mysterious Card 6.
Saved up the maximum amount of gems.
Completed Chapter 3.
Obtained Mysterious Card 5.
Completed Chapter 2.
Obtained Mysterious Card 3.
Obtained Mysterious Card 4.
Completed Chapter 1.
Won a round on Include All at the game parlor.
Won a round on Add Events at the game parlor.
Obtained Mysterious Card 2.
Won a round on Add Skills at the game parlor.
Played at a game parlor for the first time.
Won a round on Simple at the game parlor.
Obtained Mysterious Card 1.
Defeated all enemies without taking any damage.