Here is the full list of all 50 Toukiden 2 achievements.
Slay all of the Oni available in "Toukiden 2."
Pray 20 times.
Clear Chapter 3.
Clear Chapter 2.
Acquire a total of 1 million Haku.
Destroy 500 Oni body parts.
Destroy all of an Oni's body parts 50 times.
Complete Phase 6.
Slay 100 large Oni.
Clear Chapter 1.
Slay 5 large Oni without taking a break.
Bring one of your companions on 50 missions overall
Unlock all of the Stamps available in "Toukiden 2."
Raise your bond with one of your allies to its maximum level.
Unlock all of the Demon Hand functions available in "Toukiden 2."
Purify the Otherworld for the first time.
Upgrade all of the Boosts available with a single Mitama to their maximum level.
Slay 1,000 small Oni.
Destroy all the body parts of a large Oni.
Be officially anointed as a Slayer.
Equip Demon Hand for the first time.
Encounter an Oni.
Obtain all of the achievements in "Toukiden 2."
Clear Chapter 4.
Clear Chapter 5.
Clear Chapter 6.
Clear Chapter 7.
Complete Phase 12.
Clear all of the available missions in "Toukiden 2."
Complete all training sessions in "Toukiden 2."
Complete 30 quests.
Fortify a weapon to its maximum level.
Obtain 100 kinds of weapons
Fortify a piece of armor to its maximum level.
Acquire 100 different types of armor.
Eat 20 meals.
Dispatch a machina 30 times.
Create all of the brain circuits available in "Toukiden 2."
Bathe with someone of the opposite sex in the Pool of Purity.
Bathe in the Pool of Purity 50 times.
Become friends with a Tenko.
Raise your bonds with all of your allies to their maximum level.
Obtain all of the Mitama available in "Toukiden 2."
Synthesize materials 30 times.
Activate 300 Boosts.
Increase the Security Rating of all of the Ages in "Toukiden 2" to their max value.
Obtain all of the crests available in "Toukiden 2."
Obtain all of the inscriptions available in "Toukiden 2."
Complete 10 missions with every weapon in Toukiden 2
Complete 10 missions using every battle style in Toukiden 2