Embark on a journey to recover memories with the spirit Orion in "Amnesia Later Deluxe Edition." The protagonist, along with underworld sheep employees, Ukyo, and Rika, engage in a firefly hunt. Set in a parallel world without a designated lover, the story unfolds into a captivating narrative.

After retrieving memories and becoming a couple with "him," the protagonist navigates a future filled with happiness, despite occasional misunderstandings. "Amnesia's" post-ending love story revolves around the theme of proposals.

Experience the tale of the protagonist and the underworld sheep's store manager, Waka, three months before memory loss, offering four distinct worlds to enjoy: "Sergeant's World," "Elegant World," "Silent World," and "Assassin's World." Dive into a content-filled girls' talk with Sawa, Mine, and Rika in "Girls Party."

Unlock "Orion Mode" under specific conditions, where the protagonist, having lost memories with Orion, embarks on a journey to recollect them.