Samurai Katana build.
Other notes:
Can use any katana which is why strength is 20.
I didn't want to use the full eastern set so you can swap out some armour to any of the eastern set (probably the helm).
Can also duel wield katanas instead of equipping the parrying dagger as a katana can still parry in your off-hand.
If you want to reference genichiro from sekiro you can also equip lightning spear or infuse your weapons with lightning (The closest thing to his bow is the avelyn as it shoots multiple projectiles with the lightning bolts).