Season pass purchase bonus: "Alchemist of Memories" Costumes for Rias and Slade
One costume each for both Rias and Slade.

Content Details:
"Modified Knight's Uniform" Costume for Rias
"Knight's Uniform" Costume for Slade

Note:
- Costumes can be equipped after the main menu is unlocked by selecting "Combat Equipment" followed by "Change Costume."

More details on the official game page of "Alchemist of Memories" Costumes for Rias and Slade ...