Prequel focusing on Himeko, a former helper turned patient, and her summer encounter with Setsumi.

Direct follow-up to Side 2nd, wrapping Himeko's arc.

Standalone side story in a medieval-like setting, exploring desires to live or die.

Prequel origin of the 7th floor hospice rules in 1970s Japan, following two kids and the wall between the living and dying.

New tale of two girls—one dying, one desiring death—filled with regrets and profound encounters.