Here is the full list of all 49 HARVESTELLA achievements.
Exchange vows with a partner
Eat Dangerous Nitro Sautee at break time
Complete Chapter 10
Max out all 4 Break Gauges
Cook HQ Pure Medicinal Porridge
Catch 20 fish in a day
Catch 10 kinds of fish
Complete all quests
Reach maximum closeness with everyone
Expand the farm to its max size
Complete Chapter 9
Complete Chapter 8
Find all caves by digging
Complete Chapter 7
Level up your pet to its maximum level
Earn over 1,000,000 Grilla from shipping
Complete Chapter 6
Catch a size 10 Quotidicrab
Complete Chapter 5
Harvest a high-quality Islet Watermelon
Complete Chapter 4
Harvest crops a total of 1,000 times
Complete Chapter 3
Rear your first livestock
Collect 10 Conellu Dolls
Expand the farm to level 3
Clear 10 floors of the Karenoid
Catch your first fish
Feed your pet for the first time
Cook 5 kinds of meal
Improve closeness 5 times
Complete 5 quests
Fortify your weapons a total of 5 times
Craft 5 kinds of item
Defeat your first FEAR
Complete Chapter 2
Complete Chapter 1
Harvest your first crops
Harvest crops a total of 10,000 times
Craft every kind of item
Cook every kind of meal
Rear max livestock and max bond with all
Catch every kind of fish
Collect all Conellu Dolls
Unlock all jobs
Fortify all weapons to max strength
Defeat every kind of FEAR
Overcome the last trial of the Karenoid
Destroy all walls with bombs