This game continues the story based on the Bad Ending No. 3 "Result of Sadism" from the original Katsuya x Midou route. The narrative focuses entirely on Saeki Katsuya and Midou Takanori, telling the story of how, after regaining consciousness, Midou loses part of his memory. Katsuya decides to take care of him during this time as a way to atone for his past actions.