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