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