Here is the full list of all 48 Voice of Cards: The Isle Dragon Roars achievements.
Unlocked all achievements.
Witnessed the game master fall asleep.
Learned a new skill from a suspicious doctor.
Completed your collection.
Collected all equipment cards.
Began a game using saved data carried over.
Collected all enemy cards.
Viewed all endings.
Collected all character cards.
Defeated the Dragon's lingering hatred in the Vexing Cave.
Completed Chapter 7.
Collected all key item cards.
Reached MAX LV with one character.
Won a round on Include All at the game parlor.
Collected all item cards.
Obtained the protagonist's strongest weapon.
Obtained more than 50,000G.
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.
Won the battle against the island hermit.
Obtained Ridis's strongest weapon.
Collected all skill cards.
Completed Chapter 6.
Obtained Mysterious Card 9.
Obtained Mysterious Card 7.
Obtained Mysterious Card 8.
Completed Chapter 5.
Successfully fled a battle.
Completed Chapter 4.
Obtained Mysterious Card 4.
Obtained Mysterious Card 6.
Completed Chapter 3.
Won a round on Add Events at the game parlor.
Obtained Mysterious Card 5.
Completed Chapter 2.
Saved up the maximum amount of gems.
Won a round on Add Skills at the game parlor.
Obtained Mysterious Card 3.
Struck foes with elements they are weak to thrice in a single battle.
Completed Chapter 1.
Obtained Mysterious Card 2.
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.