Here is the full list of all 6 Dungeon Village 2 trophies - there are 1 bronze, 3 silver and 2 gold.
Proof of becoming Kairobot.
Proof of contribution to the development of the two villages.
Proof of maximizing the town rank.
Proof of 50 titles earned.
Proof of having 30 homes.
Proof that the monster has become a friend.