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