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