These 2 extra armor sets were made available for only 3 weeks back in 2021, but you can still grab them by jumping through some hoops.

Ornate Gold Armor and Sohaya Deserter Garb

- Completely close the Steam client by clicking the Steam icon in the top left corner and choosing "Exit".
- Disable your Internet connection. Turn off your router or just pull out the cable.
- Change the system date to February 12, 2021 by right-clicking on the system clock in the bottom-right corner and choosing "adjust date/time".
- Start Steam and launch Nioh 2.
- Claim the DLC items from the "Boons" tab at any shrine.
- Now you can exit the game, turn your Internet back on and change the date back.

Both armor sets are only level 1 but now you can refashion any piece of gear in the game to look like them.