Here is the full list of all 46 Grand Kingdom trophies - there are 28 bronze, 15 silver, 2 gold and 1 platinum.
Congratulations on getting all the trophies!
Obtain 150 total policy points.
Learned every possible skill on one of your units.
Walked 20000 steps.
Achieved Mercenary Rank of S!
Knocked back a unit 8 character-lengths.
Launched a unit 9 character-heights.
Dealt 20000 damage with one attack.
Defeated the Grand Mercenary Squad with a lower-level squad.
Defeated every Bounty Head!
Performed a 99-hit combo during one turn.
Went to all areas on a Travel Quest.
Obtained 20 flags.
Leveled a unit to level 99!
A Rogue picked up a item containing explosives.
Win a battle using the Challenger's self-destruct skill, resulting in a double KO.
An ally Shaman reflected an attack to kill an enemy.
Killed an invisible unit while it was still invisible.
Clear a Destination Quest without engaging in battle! (Spy Quests excluded)
Clear a Destination Quest without using field skills and items. (Spy Quests excluded)
Prepared to flee from battle, then fled after a unit died.
Clear a Target Quest with just one unit.
Visited each capital of the Four Great Nations.
Removed every type of obstacle on the field.
Killed 3 enemies simultaneously!
Die by stepping on a hazard.
You finally obtained a Golden Baku!
Adjust a quest's difficulty before clearing it.
Reach 99 in any stat on any unit.
Synthesized equipment at the blacksmith.
Upgraded equipment at the blacksmith.
Forged something at the blacksmith.
Met and received treatment from all 4 Healing Sisters.
Destroyed an object while a unit was on top of it.
Performed a Class Up!
An ally was eaten by a Slime.
Achieve victory with just 1 HP remaining.
Killed 2 enemies simultaneously.
Equip glasses on one of your units.
Killed an enemy using knockback damage.
Achieve victory while morale is low.
Used Grit to avoid an enemy attack.
You are now affiliated with the Guild.
You hired a new unit.
Finished off an enemy with an Assist.
Attack an ally unit with an area-of-effect attack.