Full list of all 33 Mitsurugi Kamui Hikae achievements worth 1,000 gamerscore. It takes around 15-20 hours to unlock all of the achievements on Xbox One.
Perform the holy technique "Divine Wind"
Use Zanshin to defeat 100 enemies
Max out Katana Gauge
Clear Normal difficulty
Defeat stage 6 boss "Magatsu Hino Tsurugi"
Defeat stage 5 boss "Magatsu Suzuka"
Perform a Flourish
Defeat stage 4 boss "Magatsu Kaina"
Use Zanshin to defeat 50 enemies
Defeat stage 3 boss "Suzuka"
Use Zanshin to defeat an enemy
Defeat stage 2 boss "Kaiser"
Max out Life Gauge
Defeat 100 enemies
Defeat stage 1 boss "Kaina"
Perform the holy technique "Celestial Judgement"
Reach "Mitsurugi" zeal level
String 100 hits
Defeat 10 enemies
String 50 hits
Watch the tutorial
Clear Easy difficulty
Clear Hard difficulty
Clear Very Hard difficulty
Defeat 1000 enemies
Perform a Just Guard
Perform 10 Just Guards
Perform a Counter
Perform 10 Counters
Perform 10 Flourishes
Complete all upgrades
Collect 100,000 SP
Clear Inferno difficulty