Here is the full list of all 50 Way of the Samurai 4 achievements.
Acquired all achievements.
Successfully completed 100 night crawling appointments.
Caught a total of 100 fish.
Acquired all titles.
Unlocked all fashion items.
Learned all moves associated with the shinobi dual arms style.
Learned all moves associated with the high-ready position.
Learned all moves associated with the mid-ready position.
Acquired 100 different weapons.
Learned all moves associated with hand-to-hand combat.
Learned all moves associated with the dual arms style.
Learned all moves associated with the quick-draw style.
Learned all moves associated with the shinobi style.
Learned all moves associated with the spear style.
Learned all moves associated with the low-ready position.
Learned all moves associated with the side ready position.
Successfully completed the final job mission.
Learned all moves associated with the one-handed ready position.
Watched the “Light of Hope” ending.
Caught the legendary fish.
Destroyed 10 enemy weapons.
Learned all moves associated with the gun wielding style.
Acquired 50 styles, not including My Style.
Ate all the food from restaurants and food vendors.
Mastered the Tokyu fighting style.
Mastered 100 moves total.
Acquired 10,000 samurai points.
Finished the game in harakiri mode.
Created a new fighting style.
Acquired 9,999 skill points.
Finished the game in hard mode.
Successfully completed 100 job missions.
Won 10 times at gambling.
Melted 100 weapons total.
Completed 100 combo strikes.
Defeated your character from a previous playthrough.
Forged an original weapon.
Played through to the ending.
Defeated a dojo challenger.
Enlisted a new disciple for the first time.
Changed Sensei’s destiny.
Survived the torture game.
Caught a fish for the first time.
Changed Dojima’s destiny.
Succeeded in a night crawling mission.
Made a night crawling appointment.
Successfully completed a job mission for the first time.
Strengthened own weapon for the first time.
Mastered a new move for the first time.
Killed an enemy for the first time.