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