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"Remembering / Not remembering Sin" is a text-based adventure in which a young man who has lost his memory due to higher brain dysfunction explores his past.

The protagonist leaves the facility and returns to his daily life, but he feels a strong sense of discomfort in the environment in which he should have been living.

His ability to retain memories is also declining, and he pursues the truth by using a notepad called a "memory note.

Who was he really...?



Read through the text and relive the story of Shunichi Sasaki.


Various information is recorded in the memory note.
Check the contents and select the appropriate one at the appropriate time.