Here is the full list of all 35 STORY OF SEASONS: Friends of Mineral Town achievements.
Cook every kind of dish.
Own 5 pets.
Have a total of 5,000,000G at once.
Get married.
Successfully confess to every romance option before marriage.
Eat at least one of every type of dish you can make.
Make 300 offerings to the Harvest Goddess. (1x per day)
Reach Spring of Year 5.
Win the Fluffy Festival.
Ship every type of crop with ★5 quality.
Win the Moo-Moo Festival.
Catch every type of fish.
Renovate every building on your farm.
Reach BF255 in a mine.
Own at least 8 alpacas.
Own at least 8 sheep.
Reach Spring of Year 3.
Reach BF100 in a mine.
Own at least 8 cows.
Catch 50 different types of fish.
Reach BF30 in a mine.
Own at least 4 Angora rabbits.
Breed at least one of every livestock type.
Cook 50 different kinds of dishes.
Ship every type of crop.
Renovate your house twice.
Win the Cluck-Cluck Clash.
Reach Spring of Year 2.
Own at least one of every livestock type.
Cook 10 different kinds of dishes.
Stay in the Hot Spring for 10 hours straight.
Have a total of 100,000G at once.
Have a total of 50,000G at once.
Own at least 4 chickens.
Catch 10 different types of fish.