The season pass includes the following DLC:

• Narcissu: A Little Iris - A side story set in medieval Europe, exploring what it means to desire to live, or die.
  
• Narcissu: Zero - The origin story of the 7th floor hospice and its rules.
  
• Narcissu: Sumire - An entirely new chapter in the series, it tells the tale of two girls who cross paths: one dying and the other desiring death, both filled with profound regrets about their respective lives.
  
• Narcissu Anthology Soundtrack - the 2-disc Soundtrack for the entire series, in fully lossless FLAC format