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