Here is the full list of all 49 99 Spirits achievements.
Complete Chapter Two
For Those Who Reached the End
Travel 5000 Steps
Free the World from Evil Influence
Complete Chapter Eleven
Receive the Spirits' Blessing
Index All Tsukumogami
Reach Level 50
Vanquish all Great Monsters that Roam the Land
Get to Know the Merchant
Complete Chapter Ten
Reach Level 40
Amass a Fortune of 100.000
"Acquire" a Mystical Item
Show Proof of Mastering the Use of Gems
Get to Know the Monk
Complete Chapter Nine
Save a Damsel in Distress
Reach Level 30
Vanquish a Great Monster
Pay Your Respects
Complete Chapter Eight
Complete Chapter Seven
Maximum Utility, No Nonsense
Complete Chapter Six
Reach Level 20
Master a Tsukumogami
Complete Chapter Five
Running Is a Victory
Find All Stone Statues in a Single Playthrough
Win 100 Battles
For Big Eaters
Free an Area from Evil Influence
Win 500 in a Single Gamble
Amass a Fortune of 20.000
Win a Gamble
Complete Chapter Three
Reach Level 10
Sell 50 Items
Complete Chapter One
Defeat the First Boss Without Using Items
Learn All You Can Before Setting Out
Identify an Enemy Without Any Hints
Win a Battle Without Missing a Single Counter
Wake up Dozing Hanabusa
Complete Chapter Four
Walk a Tranquil Path
Walk the Path of Asura
For Those Who Saw It All