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