The following additional content is included:
Additional Horse "Ghost"

■How to use
After purchasing Horses via the Shop in the My Castle menu in either Musou Mode or Citadel Mode, you can equip them by selecting Change Equipment in the Dojo.

Note: This content is part of the "SAMURAI WARRIORS 5 Season Pass". Be careful to avoid making a redundant purchase.

More details on the official game page of Additional Horse "Ghost" ...